Problem/Bug Permissionsex problem.

I have many errors showing when i go to yaml check sites.
Also i get an error when i log onto my server. In the chat it says that Essentials failed to load. And that i should check the logs.

This is my pex code.

https://pastebin.com/QPQ0bc88

What else do you guys need to be able to solve the launch problem with Essentials?

And also, How do i get the prefixes to show in the chat?