Players crash on join.

Well, lately my community has switched maps from rp_evocity_v33x to the newer v2 version. Now about %20 of the players joining crash. The way they crash is once they load in it is perfectly fine for a couple of seconds until their screen freezes and the window automatically closes. A small potion of those crashing have received an error when crashing.

Note: This has only started happening after we have switched to the newer version of EvoCity. I hope someone can help me out here.