WarpGUI Command Errors

I am using this plugin:
https://www.spigotmc.org/resources/warpgui-essentials-with-sounds.29933/


I set up my configuration file to test it, as it keeps on wanting to reset itself after the errors, following the format of the original/example provided upon installation.
However, everything appears to load fine, but when I go in-game to use the command /warp (or /warps) I get an error and I cannot seem to figure out the problem.

Main error line given: (when I do /warps or /warp)
[03:08:47 ERROR]: Could not pass event PlayerCommandPreprocessEvent to WarpGUI v4.5.5

Error code from PlayerCommandPreprocessEvent:
https://pastebin.com/3mMuW9A3

Main error line given: (when I click on the item in the GUI in-game to try to warp)
[22:16:46 ERROR]: Could not pass event InventoryClickEvent to WarpGUI v4.5.5

Error code from InventoryClickEvent:
https://pastebin.com/59As7aFw

Full error code:
https://pastebin.com/Cv971AGr

My current config file: (the original because it resets)
https://pastebin.com/B5s47Y8x

I use version Bukkit 1.12.2 on Java 8

 

The Bukkit Playersound library is changed since 1.9.
So the plugin is outdated, It is trying to get the previous library of the sounds.

You need to change the Enum (PlaySound names) to the 1.9+ ones.

This is the good library: http://www.theredengineer.com/1.9-playsound-list.html

List of Noteblock sounds (open) List of Noteblock sounds (close)

block.note.basedrum
block.note.bass

block.note.bell

block.note.chime

block.note.flute

block.note.guitar
block.note.harp
block.note.hat

block.note.pling
block.note.snare

block.note.xylophone

 

@Proxygames14

I fixed that and when I add more than one item, it completely erases the config file to the original...

what I try to do:
https://pastebin.com/NUdb7HsU
I get the error:
"Cant load warp gui config"
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_112]