A mob is not working in MCreator and I don't know what the issue is (using ver. 2022.1)

I have read forums similar to this, and tried fixing the issue with whatever solutions I saw, but it didn't work. 

I made a mob with a custom model, custom textures and custom sounds and AI, saved it, but it says that there is an issue and I don't know what the issue is. I've looked through everything, but I couldn't find the problem.

I have tried disabling the AI, fixing the model, changing it's spawn, but it didn't work... Please help me... 

Platform: Windows 7

Version of generator: Forge 1.16.5+

This is my log: https://pastebin.com/H6d1pZNS

And here is my workspace (it's the mouse mob that creates the problem): https://github.com/MCreator/MCreator/files/8789550/My.Mod-Mouse.Error.z… (please do not copy)

I have tried posting it on Github, but they said to me that I should post it here.