Fatal render error

Hi! everything was ok with my mod yesterday, but when I tryed to open minecraft today, I got this error: [Render thread/FATAL] [mixin/]: Mixin apply failed obfuscate.mixins.json:client. - Pastebin.com - this console error, and this ---- Minecraft Crash Report ----// Don't be sad, have a hug! <3Time: 5/26/ - Pastebin.com - crash report. I'm tryed to delete all new models and items.

I'm using MC 2021.1 , 1.16.5 vresion.



Help me please.