When I double click my mod it starts, but in the menu it changes the walls of my menu map and some of the furniture bis still there but instead it replaces the floor with nothing and some of the walls are missing and changed! why? this happened after I just put a models file and a graphics file and when I press new game it doesn't even play the sound that it used to do! and then gets me this error while starting new game!
http://prntscr.com/3i5utg
This is how the menu was before
http://prntscr.com/3i5vz0 and this si how it turned out
http://prntscr.com/3i5x4x
pls help cause I'm confused