Levels won't load - linux

[Cejkis-zz]

Loading levels doesn't seem to work for me - there are no levels at the level
selection screen. I have ubuntu mate 16.04 64bit. My friend has the same system (except not mate) and it works fine for him. (The pre-compiled version)
In unity I see there is an error when I go to level selection screen (see the image). Perhaps I'm missing some library? Thanks!