Plugins that uses signs and gui acting weird

1.16.4, runs on a Linux Ubuntu machine
Right-clicking a sign won’t do anything for ChestShop, SignWarper, or Essential’s Warp Signs
Some plugins that use a GUI doesn’t work; some do
Book plugin doesn’t work (Interactive Books)

I don’t have an idea of what caused this

I also had a plugin that caused an error, though removing it did nothing
Logs w/ that plugin:

Try updating

Lmao I did and it worked, silly me. Tysm m8