Can open server and have people join on TTT but not on other modes!

So I copied my dedicated server and changed gamemodes, all I did was change addons and gamemode but no one can join when it’s not ttt, I don’t know why any help?

maybe a addon is blocking it?

I have switched between many addons, I can join but my friends can’t, most addons are the ones used on the ttt just I have dif maps!

do they get any errors or so? would help to know that.

No errors just doesn’t work fro soem reason

[editline]26th July 2016[/editline]

I fixed it, apparently if the server folder is named gmodserver like the ttt folder was then it works, maybe I had a file that only let it be in that folder???