So I went past the 1813 error, uninstalled the game 3 times now, tried alot with take ownership and the mutable folder / backupfolder I tried some powershell codes but nothing works. Doesnt matter what I do, when I click on "play" on the microsoft store or start the game in the folder that error opens "cancelled startup of pso2updater.exe" and then closes. But when I try to start the "pso2startup.exe" manually in the folder, nothing happens. Nothing starts.
At this point im just waiting for them to fix the damn microsoft store and hoping they gonna launch on steam on the next days, otherwise this game is gonna be dead for so many players.