In this new version, a languages folder was created, which currently contains:
English - en_US
Brazilian Portuguese - pt_BR
French - fr
German - de
Polish - pl

Due to this creation, the config.yml was COMPLETELY modified.
All messages and settings were moved to the languages folder.

Choose the language that best suits you. The default is en_US,
which is English.

If your language is not available, send me later your update a copy via DM or
via the Discussion Thread with the messages present
in the template.yml file to I create your language.

1 - Save a copy of your current config.yml in a notepad
or similar for don't lose your own configurations.

2 - Creates a "languages" folder inside Back folder

3 - If your language already exists in the list above, copy the
whole YAML related to this language, which is available
here below this instructions. If your language doesn't
exist, copy the whole "en_US" YAML.

4 - Creates a ' "id".yml ' related to the chosen language.
The "id" can be "en_US" for English, "pt_BR"
for Brazilian Portuguese, "fr" for French, "de" for German,
"pl" for Polish

5 - Paste the copied YAML related to the chosen language
inside this "id".yml

6 - Now it's time to compare the language version with
your current config.yml. Verify every single field to update
with your own configuration. When you be ready, go to next step.

7 - Since you made everything correctly, now we are
going to edit the config.yml. Copy the whole content
from the "config.yml" below these instructions and
replace totally inside.

8 - In this new config.yml, choose the language you want,
as said befoe: "en_US", "pt_BR", "fr", "de" or "pl".
If you don't have your language, use "en_US"

9 - Now update the Back jar to 1.8.6

10 - Use /back reload, and we are done here.

11 - ONLY IF DOESN'T WORK THE STEP 10, maybe
a /reload in the server could be necessary, but this will
affect your whole server.

# Plugin developed by GFelberg
# Config.yml

# language: en
# Thanks for downloading my plugin. For more plugins, don't forget to look my updates!
# If you find any bugs or ideas to the plugin, pm me at spigot.

# language: br/pt
# Obrigado por baixar meu plugin. Para mais plugins, não esqueça de olhar as atualizações!
# Se você encontrar algum problema ou ter alguma ideia para o plugin, pm no spigot.

# Permissions

# back.back : Access to Back command
# back.bypass : Access to Back command without cooldown
# back.bypass.economy : Access to Back command without withdraw money
# back.admin : Access to the Admin Help and List all Blocked Worlds
# back.update : Access to receive notifications about the plugin, as new versions
# back.reload : Access to Reload the Plugin

# Placeholders

# %back_prefix% : Gets the Back prefix
# %back_delaytime% : Gets the remaining time for use the Back Command, if cooldown is enabled.
# %back_cost% : Gets the teleport cost
# %back_withdraw% : Gets the money taken from the player account

# Update-Check Option - https://www.spigotmc.org/resources/back.94702/
# If true, a permission will be required to receive the notifications if the player doesn't have the OP enabled
# If true, the player will receive the notification when joins the server
update-check : true

# Version Messages

# %back_prefix% : Gets the Back Prefix
# %back_current_version% : Gets the Current Version
# %back_latest_version% : Gets the Latest Version
# %back_spigot_link% : Gets the Back Spigot Link

VersionMessages :
 - ""
  - "%back_prefix% &eThere is a new update available!"
  - "&6Current Version : &c%back_current_version%"
  - "&6Latest Version : &a%back_latest_version%"
  - "&6Link : &e%back_spigot_link%"
  - ""

# Warning: The "death_locations" file SHOULD NOT be touched. The file works itself with the configurations and
# deaths in the server.

# Configuration 1.0
# This configuration will display the Back Messages
Back:
  Prefix : "&b[&eBack&b]&r"
  Message : "&eYou have been teleported to your last location"
  Failed : "&cYour teleport has been failed. No location found!"
  BlockedWorld : "&cYou died in a world which this command is blocked by an Admin!"
  NoPermission : "&cYou don't have permission to perform this command!"

# Configuration 1.1
# This configuration will display the Help Page Messages
Help:
  Page : "&eShows this page"
  Back : "&eTeleports to your last location"
  Backlist : "&eList all Blocked Worlds"
  Reload : "&eReloads the Plugin"

# Configuration 1.2
# This configuration will display the Cooldown System

# If "true", the player will have to wait 'x' seconds to use the command after his death.

# If "false", the player can use the command immediately after his death.

# If the player has "back.bypass" permission, the player will be able to use the command even with the cooldown enabled.
# By default, the cooldown is disabled.

# The Delay message is "You must wait 'x' seconds to use the command!", which 'x' is the %back_delaytime% placeholder.

Cooldown:
  Enable : false
  Message : "&cYou must wait &b%back_delaytime% &cseconds to use the command!"
  Time : 10

# Configuration 1.3
# This configuration will display the ClickOption System (Server Version = 1.16+)

# By default, you can see there's a space above and under the "&c[Click here to Death Location]" here in config.yml.
# However, in game, it's 2 spaces above and under (1 space above and under by default in game (can't be changed) + spaces in config.yml).

# If you believe is a lot, you can't just remove the spaces here in the config.yml, so only 1 space will be visible above and under in game.
# If you want to add more information, you can change or add more lines.

# This option can be only be enabled if your server version is 1.16 or above. If the option is
# activated and your server is below 1.16, some logs will be sent into the Console each time
# the command is used. To stop, disable the option and use the /back reload

# For a better explanation, please check the Back Overview Page at spigot: https://www.spigotmc.org/resources/back.94702/
ClickOptionEnable : false

# Messages displayed in game
ClickOption :
 - ""
  - "#FF5555[Click here to Death Location]"
  - ""

# Configuration 1.4
# This configuration will display the WorldBlacklist System

# WorldBlacklist is a method created to block the /back command to be executed. If you put a world that exists in your server in the list, if a player dies and execute the command
# the player will be blocked. The command will only works if he dies inside an allowed world.

# By default, this option will be disabled.
WorldBlacklist:
  Enable : false
  DisabledMessage : "&cThe WorldBlacklist is currently disabled by an Admin!"
  Title : "&bBlocked Worlds"

# Blocked Worlds
BlockedWorlds :
 - 'world1'
  - 'world2'
  - 'world3'

# Configuration 1.5
# This configuration will display the Vault System

# You must have the Vault and an Economy Plugin to the Vault System works. If you don't have one of them, the default
# method will be applied, which is the classic mode.

# If the player has "back.bypass.economy" permission, the player will be able to use the command without withdraw money
# if Vault System is enabled.

Vault:
  Enable : false
  TeleportCost : 10
  Withdraw : "&e$%back_withdraw% &bwere taken from your account"
  NoMoney : "&cYou need $%back_cost% to teleport!"

# Plugin developed by GFelberg
# Config.yml

# language: en
# Thanks for downloading my plugin. For more plugins, don't forget to look my updates!
# If you find any bugs or ideas to the plugin, pm me at spigot.

# language: br/pt
# Obrigado por baixar meu plugin. Para mais plugins, não esqueça de olhar as atualizações!
# Se você encontrar algum problema ou ter alguma ideia para o plugin, pm no spigot.

# Permissions

# back.back : Access to Back command
# back.bypass : Access to Back command without cooldown
# back.bypass.economy : Access to Back command without withdraw money
# back.admin : Access to the Admin Help and List all Blocked Worlds
# back.update : Access to receive notifications about the plugin, as new versions
# back.reload : Access to Reload the Plugin

# Placeholders

# %back_prefix% : Gets the Back prefix
# %back_delaytime% : Gets the remaining time for use the Back Command, if cooldown is enabled.
# %back_cost% : Gets the teleport cost
# %back_withdraw% : Gets the money taken from the player account

# Update-Check Option - https://www.spigotmc.org/resources/back.94702/
# If true, a permission will be required to receive the notifications if the player doesn't have the OP enabled
update-check : true

# Warning: The "death_locations" file SHOULD NOT be touched. The file works itself with the configurations and
# deaths in the server.

# Configuration 1.0
# This configuration will display the Back Messages
Back:
  Prefix : "&b[&eBack&b]&r"
  Message : "&eYou have been teleported to your last location"
  Failed : "&cYour teleport has been failed. No location found!"
  BlockedWorld : "&cYou died in a world which this command is blocked by an Admin!"
  NoPermission : "&cYou don't have permission to perform this command!"

# Configuration 1.1
# This configuration will display the Help Page Messages
Help:
  Page : "&eShows this page"
  Back : "&eTeleports to your last location"
  Backlist : "&eList all Blocked Worlds"
  Reload : "&eReloads the Plugin"

# Configuration 1.2
# This configuration will display the Cooldown System

# If "true", the player will have to wait 'x' seconds to use the command after his death.

# If "false", the player can use the command immediately after his death.

# If the player has "back.bypass" permission, the player will be able to use the command even with the cooldown enabled.
# By default, the cooldown is disabled.

# The Delay message is "You must wait 'x' seconds to use the command!", which 'x' is the %back_delaytime% placeholder.

Cooldown:
  Enable : false
  Message : "&cYou must wait &b%back_delaytime% &cseconds to use the command!"
  Time : 10

# Configuration 1.3
# This configuration will display the ClickOption System (Server Version = 1.16+)

# By default, you can see there's a space above and under the "&c[Click here to Death Location]" here in config.yml.
# However, in game, it's 2 spaces above and under (1 space above and under by default in game (can't be changed) + spaces in config.yml).

# If you believe is a lot, you can't just remove the spaces here in the config.yml, so only 1 space will be visible above and under in game.
# If you want to add more information, you can change or add more lines.

# This option can be only be enabled if your server version is 1.16 or above. If the option is
# activated and your server is below 1.16, some logs will be sent into the Console each time
# the command is used. To stop, disable the option and use the /back reload

# For a better explanation, please check the Back Overview Page at spigot: https://www.spigotmc.org/resources/back.94702/
ClickOptionEnable : false

# Messages displayed in game
ClickOption :
 - ""
  - "#FF5555[Click here to Death Location]"
  - ""

# Configuration 1.4
# This configuration will display the WorldBlacklist System

# WorldBlacklist is a method created to block the /back command to be executed. If you put a world that exists in your server in the list, if a player dies and execute the command
# the player will be blocked. The command will only works if he dies inside an allowed world.

# By default, this option will be disabled.
WorldBlacklist:
  Enable : false
  DisabledMessage : "&cThe WorldBlacklist is currently disabled by an Admin!"
  Title : "&bBlocked Worlds"

# Blocked Worlds
BlockedWorlds :
 - 'world1'
  - 'world2'
  - 'world3'

# Configuration 1.5
# This configuration will display the Vault System

# You must have the Vault and an Economy Plugin to the Vault System works. If you don't have one of them, the default
# method will be applied, which is the classic mode.

# If the player has "back.bypass.economy" permission, the player will be able to use the command without withdraw money
# if Vault System is enabled.

Vault:
  Enable : false
  TeleportCost : 10
  Withdraw : "&e$%back_withdraw% &bwere taken from your account"
  NoMoney : "&cYou need $%back_cost% to teleport!"

back.bypass.economy : Access to Back command without withdraw money

# Plugin developed by GFelberg
# Config.yml

# language: en
# Thanks for downloading my plugin. For more plugins, don't forget to look my updates!
# If you find any bugs or ideas to the plugin, pm me at spigot.

# language: br/pt
# Obrigado por baixar meu plugin. Para mais plugins, não esqueça de olhar as atualizações!
# Se você encontrar algum problema ou ter alguma ideia para o plugin, pm no spigot.

# Permissions

# back.back : Access to Back command
# back.bypass : Access to Back command without cooldown
# back.bypass.economy : Access to Back command without withdraw money
# back.admin : Access to the Admin Help and List all Blocked Worlds
# back.update : Access to receive notifications about the plugin, as new versions
# back.reload : Access to Reload the Plugin

# Placeholders

# %back_delaytime% : Gets the remaining time for use the Back Command, if cooldown is enabled.
# %back_cost% : Gets the teleport cost
# %back_withdraw% : Gets the money taken from the player account

# Update-Check Option - https://www.spigotmc.org/resources/back.94702/
# If true, a permission will be required to receive the notifications if the player doesn't have the OP enabled
update-check: true

# Warning: The "death_locations" file SHOULD NOT be touched. The file works itself with the configurations and
# deaths in the server.

# Configuration 1.0
# This configuration will display the Back Messages
Back:
  Prefix: "&b[&eBack&b]&r"
  Message: "&eYou have been teleported to your last location"
  Failed: "&cYour teleport has been failed. No location found!"
  BlockedWorld: "&cYou died in a world which this command is blocked by an Admin!"
  NoPermission: "&cYou don't have permission to perform this command!"

# Configuration 1.1
# This configuration will display the Help Page Messages
Help:
  Page: "&eShows this page"
  Back: "&eTeleports to your last location"
  Backlist: "&eList all Blocked Worlds"
  Reload: "&eReloads the Plugin"

# Configuration 1.2
# This configuration will display the Cooldown System

# If "true", the player will have to wait 'x' seconds to use the command after his death.

# If "false", the player can use the command immediately after his death.

# If the player has "back.bypass" permission, the player will be able to use the command even with the cooldown enabled.
# By default, the cooldown is disabled.

# The Delay message is "You must wait 'x' seconds to use the command!", which 'x' is the %back_delaytime% placeholder.

Cooldown:
  Enable: false
  Message: "&cYou must wait &b%back_delaytime% &cseconds to use the command!"
  Time: 10

# Configuration 1.3
# This configuration will display the ClickOption System (Server Version = 1.16+)

# By default, you can see there's a space above and under the "&c[Click here to Death Location]" here in config.yml.
# However, in game, it's 2 spaces above and under (1 space above and under by default in game (can't be changed) + spaces in config.yml).

# If you believe is a lot, you can't just remove the spaces here in the config.yml, so only 1 space will be visible above and under in game.
# If you want to add more information, you can change or add more lines.

# This option can be only be enabled if your server version is 1.16 or above. If the option is
# activated and your server is below 1.16, some logs will be sent into the Console each time
# the command is used. To stop, disable the option and use the /back reload

# For a better explanation, please check the Back Overview Page at spigot: https://www.spigotmc.org/resources/back.94702/
ClickOptionEnable: false

# Messages displayed in game
ClickOption:
  - ""
  - "#FF5555[Click here to Death Location]"
  - ""

# Configuration 1.4
# This configuration will display the WorldBlacklist System

# WorldBlacklist is a method created to block the /back command to be executed. If you put a world that exists in your server in the list, if a player dies and execute the command
# the player will be blocked. The command will only works if he dies inside an allowed world.

# By default, this option will be disabled.
WorldBlacklist:
  Enable: false
  Title: "&bBlocked Worlds"

# Blocked Worlds
BlockedWorlds:
  - 'world1'
  - 'world2'
  - 'world3'

# Configuration 1.5
# This configuration will display the Vault System

# You must have the Vault and an Economy Plugin to the Vault System works. If you don't have one of them, the default
# method will be applied, which is the classic mode.

# If the player has "back.bypass.economy" permission, the player will be able to use the command without withdraw money
# if Vault System is enabled.

Vault:
  Enable: false
  TeleportCost: 10
  Withdraw: "&e$%back_withdraw% &bwere taken from your account"
  NoMoney: "&cYou need $%back_cost% to teleport!"