the problem is this
this is an pastebin of the error cuz is to large
Crash report - Pastebin.com
Hi. Good news is its not sponge forge.
The issue is actually a mixins issue (mixins are built into forge). The bad news is your crash doesnt tell us anything. Mind posting the full log? Should be found in
.minecraft/logs/latest.log
here it is
full log
The issue comes from enhancedcelestials.mixins.json
If you have a mod of enhanced celestials i would contact them.
If not then use a program like Mixin Detector to find what mod has that file
oh thx for your help