Hey, I did a little mistake for the 3.8 and the adaptation for the version 1.11 of Minecraft, the plugin did not work anymore.

I did the best of I can for publish to you a fix and there he is
I did by the way many adjustements like :

• The invicible time when you do a /srtp the time before the update (for the effects) was 100 milliseconds, and now it's 50 milliseconds.
• The radius of the random teleportation was 1000 blocks and now 10000 blocks

I am sorry for the caused embarrassment.
Stan