AlexThe18709

Ah that was it. I fell stupid. I added it to the client and then forgot to update the server. Thanks everyone who replied

Is the crash report not the log? And if so, is the console? The console only shows:

You say you have no mods installed yet it's detecting files from damage indicator mod, and at the bottom says it's definitely modded. Perhaps do a clean install?

I really don't want to be bothering people with what is likely a simple solution, I just can't seem to figure out the problem. I have a modded server, with about 60 mods on it, and I'm getting this crash report: I'm assuming from the error name that I'm missing a mod or have a mod that doesn't belong. I don't know what it is. I've tested this on client and it works fine, and I believe I've removed all of the clientside only mods, such as the mapwriter mod. Sorry and thanks in advance.