90002 Error during login (Only on one character)

Since Tuesday, August 8th at around 2000 (8PM) EST, I have not been able to log in with one and only one character. I am able to create new characters or log in with other characters, however, when I try to log in with my main character, I immediately get disconnected.

I select the character from the Selection Screen, see the "Now Loading" Screen, but after a few moments I get a "Connection with the server was lost" 90002 error. If I select a different character on the same exact server, it logs in with no issues. This problem ONLY revolves around one character, the one with 99% of my playtime invested into it.

Things I've tried:
-Flushing my DNS
-Statically assigning my DNS to Google's Public
-Restarting my Modem/Router
-Restarting my PC
-Logging in with a different PC
-Deleting the FFXIV Folder in My Documents > My Games
-Uninstalling the client and reinstalling

None of these fixed the issue. And seeing as I can play as other characters, on the same sever, on the same computer, with no issues what-so-ever, it tells me the issue is not on my side.

Please assist, what can be done to resolve this??

Thank you in advance