I've been playing for years, got all the expansions. Tried to log in today and got this message after entering my username and password:

"FINAL FANTASY XIV has not yet been registered with this service account or your subscription has expired. To play the game, you must first complete the registration process using the registration code included with your purchase. To register, visit the FINAL FANTASY XIV: Mog Station (https://sqex.to/Msp)."

I already bought and registered the base game and every expansion thereafter to include Shadowbringers and have been playing for years. I'm looking around the forum and see that this is a reoccurring problem begining since the latest patch, 5.08, dropped and can't seem to find a solution in any thread. Please provide assistance, thank you.