[HELP] Server cord closed

Hello,
i need your help please.
I trying to make my private server for me and my friend, but i cant connect to it because it says server cord closed after i'm trying to connect.
Everything else is fine.
Have i change the port anywhere?

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Check gateway response, not the agent...

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Did you try normal accounts, not gm accounts?

yea, tried it right now, but also cannot connect :/

please add me on skype ,
keep_cool_xd