Originally Posted by ThePwnt
You need to check on:
You can find sv_allow_votes
Don't do this. It specifically says not to modify those files.
Admins should not modify the gamemode_XXX.cfg files. Valve's file naming convention suggests that these files may be modified in the future, and your settings may be overwritten. Instead, modify the file ending in _server.cfg you create.
More importantly, what game are you running?
If CS:GO, game_mode + game_type are you running?
Read the link above and create the correct _server.cfg file corresponding to your game_mode + game_type.
Again, this is all under the assumption of CS:GO, you should always specify what game in post.