It crashes when you try opening the menu. You can see it for a second. It will crash even if you remove hud.
It works completely fine in singleplayer.
Crash report: crash-2022-02-05_12.41.34-client.txt
The only mods installed are Morph and iChunUtil.

same issues

Only took me a couple of hours trying to figure it out, but it should be fixed in the next update of Morph.