Error when loading Sandtraps chapter from 2004 2187 version of HL2


Hi guys. I need some serious help with the build I’m trying to play. Whenever I load up Sandtraps chapter from HL2 2004 Build 2187 menu, it just crashes with a message “The instruction at 0x0000000020166C70 referenced memory at 0x0000000020166C70. The memory could not be read. Click on OK to terminate the program”. And I really want to play that chapter because I want to improve my skills and bhop. I tried copying over maps from HL2 Steam to it with no luck.
I would appreciate any help with this unfortunate cause. :ok: