WOW51900223 Error

Good evening yall. Yesterday I was playing Cataclysm fine, but today I am unable to log in. I am receiving this WOW51900223 error when launching. I am able to see the list of servers, but they’re all red and when trying to log into my server I get disconnected with the error I mentioned before. I tried to scan and repair the game as well as reinstalling to no avail. Is anyone else having this issue or perhaps knows how to get this fixed?

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Hey man I had this today too
What worked for me is,
-Close your game and Battle.net launcher
-Go in C:/programdata and delete (or rename) the folder “battle.net”.
-Then launch Battle.net launcher. It will automatically make that folder again.

Then it should update your game.
Hope this worked for you.
Credit goes to some random guy on reddit i found via google

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thank you so much. Oddly enough, this didn’t fix the issue right away but it pushed an update through to the launcher and that fixed it. I had tried to manually check for updates with the launcher constantly saying it was up to date.

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