The beta has been updated to 0.9.2 which fixes a crash with e_spawnball on Windows servers and fixes some weapons not firing or crashing the server in HL2 Deathmatch.

If you're updating from 0.9.1, you only need to replace the sourceop.dll/so file in the orangebox\bin directory and DF_funcoffs.txt which is in the addons\SourceOP directory.