Version Info

• Minecraft, ...
• Chunk Loaders, ...

1.21.1
-Chunk Loaders and dependencies

Are you using OptiFine?: ...
no

Steps to Reproduce
install mods on the fabric server and trying to start it

Crash report (~/logs/latest.log)
picture

apperently i dont have fabric on a fabric server

Fabric API is the part that's missing. You can find it on CurseForge or Modrinth.

Ok thanks worked fine and thanks for quick support