GAME CRASHES WHEN I TRY TO GRAB MY CUSTOM GUN

So I created a laser rifle and made the model, texture, display settings and animations in blockbench

with Geckolib plugins, so I added a animated item in Mcreator and imported the model, display, etc. And when

I open the game everything is normal, and in the creative menu, when I scroll down to the custom weapon, the game crashes, it literally crashes exactly when i scroll to the item.

I know It's not any procedure because I've tried with and whitout it, so I don't know how to fix this crashes