Server crash

At first when I start srcds I get a warning message telling me that garrysmod\bin\game_shader_generic_garrysmod.dylib is either not designed to run on Windows or it contain an error. If I close that window my console pops up, just for a second and shows this message.

http://img405.imageshack.us/img405/3949/buggag.png

I have tried deleting the file but it still shows the same error.