When i join a server the game stops working and i get and error in the jka console saying " VM_Create on UI failed". I have tried the solutions on the websites but those didn't work. Any suggesetions?
Indeed.
Remove any third party-mods from base directory, keep only assets?.pk3 files from vanilla game there and try again.
And I should mention that if nothing helps, you need to try MBII Client solution.
Even if it fails, there will be new error text, not "VM_Create on UI". Quote it.