If your game crashes immediately after installing the mod, the modified is likely incompatible with your game version.
: If the mod causes "boost bugs" (collision issues), you can try using cl_player_ragdolls_collide 1 in the console, though this requires sv_cheats to be enabled. Top Community Versions
Add ragdoll.amxx (or the specific file name) to the bottom of the list. Step 5: Test in-game