Good, I'm trying to make a server with a package of mods and plugins.
It is in version 1.12.2
The version for plugins I am using is "spongeforge-1.12.2-2838-7.1.7-RC3859"
All mods load perfectly, but when I put theirs I get an error.
Version of the mod "foamfix-0.10.5-1.12.2"

Link debug:
https://pastebin.com/rwGYTYCK

Link latest:
https://pastebin.com/mC9fwKpS

FoamFix 0.10.8 disables those automatically if SpongeForge is detected.

I second this, same versions !
please fix! <3

I am also getting the same error - have removed FoamFix for now.

To fix this you need to set the following options in the foamfix.cfg

optimizedBlockPos=false
patchChunkSerialization=false

@AlienXAXS

@diaverso

Thanks @RedCriterion -i knew about the patchChunkSerialization, but not the other :)