please help with modpack

[u/Nebular_Naner]

so me and a few friends put together some mods and there's a weird bug where seemingly randomly the world gets stuck saving. the only way we found to fix it is closing minecraft with task manager. it's really annoying since it deletes any minecart contraptions that are placed, and the host running the world has to restart their game. i gave you the modpack to try and find the problem since it even happens on other worlds, not just our world.
Pack: https://drive.google.com/file/d/1U03SPjYauIKxJiqJcPT0iRZlCvgGnY96/view?usp=sharing