Would appriciate some help with das piece of code :D

Would appreciate help with this piece of code :D

Its written in LaTex and I get a missing curly brace error and a not defined warning, but braces are closed and I dont use the warning vars :/

I asked the question in stackoverflow but no replies :/

http://stackoverflow.com/questions/28937842/curly-brace-error-occurring-when-curly-braces-are-closed-correctly

Thanks :D