My mc is crashing and IDK why, when it starts loading up the home screen is like a glitched block (purple and black)

[INeedHelp...]

this is the error message 

Error: java.lang.IllegalAccessError: failed to access class net.minecraft.client.renderer.block.model.ItemModelGenerator$SpanFacing from class net.mehvahdjukaar.modelfix.ModelFix (net.minecraft.client.renderer.block.model.ItemModelGenerator$SpanFacing is in module [email protected] of loader 'TRANSFORMER' @b428830; net.mehvahdjukaar.modelfix.ModelFix is in module [email protected] of loader 'TRANSFORMER' @b428830)

[warjort]

That error says there is an issue with the ModelFix mod. Probably a conflict with another mod?

Check you have the latest version then contact the mod author.

[INeedHelp...]

Ty, it is now fixed!