Help Me!

I have Source 2007 + 2006 + SDK installed but when I play the game, it freezes and crashes during the reasonace casade part… I also have GMod, but I didn’t have it installed then. Is Gmod okay to use for BMS?
I have some pictures of the command console that said something about not being able to create gibs or xenians and ALOT of erros.

Founded in 2004, Leakfree.org became one of the first online communities dedicated to Valve’s Source engine development. It is more famously known for the formation of Black Mesa: Source under the 'Leakfree Modification Team' handle in September 2004.