On my webhook the plugin prints player name with this characters before or after: §4 or §r, don't know what they are, you know where the error is?

Sorry for the delay, and sorry for the bug. Thank you for using/trying out my mod!

I'll try to make a fix if you can help me narrow down the problem. A few questions:

1. Can you please send me a screenshot, or server logs?
2. Does it happen to all players? Or just one/a few? Do those
3. What server and game version?
4. Do you have any other mods installed? Particularly those that might manipulate names (like Fakename)

1. 
2. Yes it happens for all players but only on left, on join it works good.
3. Paper server, 1.20.1 (but was the same on 1.19)
4. I have LuckPerms, Essentials, Vault

I tried to look at the code but i thought you can fix it faster than me, already knowing the plugin