There seems to be a mod incompatibility with lootbeams.
it seems that some part of lootbeams try to call java.lang.NoSuchMethodError: 'dev.shadowsoffire.placebo.reload.TypeKeyed dev.shadowsoffire.placebo.reload.DynamicHolder.get()' if you wish for me to go put this in placebo or lootbeams feel free to tell me.

files
crash-2024-04-14_07.10.59-server.txt
logs: https://mclo.gs/J7gGRFN.

Looks like loot beams is compiled against an older version of Placebo - they'll need to rebuild against latest.