The new update from the mod, Quark-r2.4-320, was involved a server crash, I'm attaching the crash report, ty in advance as always Vazkii, and good luck my old friend.
Crash Report: https://pastebin.com/m0JVxFNK

same issue here

The server crash seems to be cause they are loading a Client side class on server

java.lang.RuntimeException: Attempted to load class net/minecraft/client/gui/screen/inventory/ContainerScreen for invalid dist DEDICATED_SERVER