Quote Originally Posted by Travithymia View Post
Try identifying what expansion the map you're trying to log in to is from (looks like a Heavensward one to me?) and deleting it's folder from your game directory which will cause the launcher to re-download it. I know you've already reinstalled a few times but you just might not have gotten lucky enough to have downloaded/installed a non-bugged version of the game yet - That's how random and tempermental this issue is from my experience. Re-downloading portions of the game multiple times is the only fix that has ever worked for me since 5.1 and I had/have the exact same errors as you.

The folder is FINAL FANTASY XIV Online > game > sqpack and it's ex1 for Heavensward, ex2 for Stormblood, ex3 for Shadowbringers, and ffxiv for ARR.
I actually tried this once before, and the ex pack I deleted wouldn't redownload. It just doesn't redownload in the launcher. I had to reinstall the whole thing.