Have you used a mod lately? If so, try opening the mod you last used, put it back on the SMB mappack, and open up vanilla Mari0 again. I'm pretty sure it's a mod becasue line 1199 of menu.lua has to do with entities, so it would be a mod with custom entities.
WaryLouka wrote:This is all new, and i aint got any idea why. I did nothing, yesterday Mari0 was working. Now Today, it dont work at all.
It's involved around the menus.
If you played some mappack that's only compatible with my mod, then this may have happened. Try opening my mod and see if this happens again. If not, the mappack that load will be the one you should remove...
As the error sorta mentions it's related to loading the background map at the start.
Also, clean your CPU fan, temperatures above 60°C are not usually good unless you have a pentium 4 and anything above 80°C should be alarming. At 108°C you should be screaming and shutting down your breakers.
Keeping the temperature this high could result in very very bad consequences.