[Request] Help Please Have Little Problem Join See It (Maybe You Can Help)

Hello I Got Problem With my Server every thing oky server online

and service is on but when any pc try to login in server this

massage appear connection to the server ended .please try agin later

and this problem happened with any pc and fire wall already
off

and i check every thing in server.cfg file and its ok

see a photo (this server BR Files)

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easy

check the version on database .. its not same as the client