Please provide your log file located in ".minecraft/logs", filename is "latest"

Not OP, but experiencing the same issue.
https://pastebin.com/mYzJUnqc
For me it happens when I trigger a piston door on my server

Not OP, but experiencing the same issue. https://pastebin.com/mYzJUnqc For me it happens when I trigger a piston door on my server

Please do upload/send "latest" log instead of the "crash" log file
Most likely a duplicate of #107
So please install Indium

That does seem to be the issue. Is it possible to make the mod require indium such that it won't boot without it? Like setting it as a required dependency? It worked fine without it until the pistons went off, so I didn't even think to check if my uninstalling indium was the cause.

That does seem to be the issue. Is it possible to make the mod require indium such that it won't boot without it? Like setting it as a required dependency? It worked fine without it until the pistons went off, so I didn't even think to check if my uninstalling indium was the cause.

That I think won't be done as native Fabric Rendering API (FRAPI) support will be coming to Sodium soon though only for the latest version of Minecraft at the time of release, Indium is only needed if Sodium is installed as Indium is basically a compatibility layer that allows mods, such as Continuity, to make use of FRAPI while letting Sodium do its thing

And I think Pepper only supports the latest versions of Minecraft at the time as well