"This player is already online!"

[FuzzyDark]

I'm getting a lot of those errors when players try to log in my server. I've resetted the password several times for each, but after a couple minutes, the error shows up again for those users. I don't know what the heck is going on, and I can't afford to not have a Login plugin in the server. I need to have it solved ASAP.

[lenis0012]

Are you using bungeecord? That can cause issues like this