Unable to update or reinstall

Hello kingdom come team I was a Böcker from the early days and had already had the chance to play the beta before recently I try to update my client which ended up not working. I tried to deinstall everything and started up from scratch but the same error appears every time.
it always freezes at around 85% of the update and then says: “The account is already existing”
Please help me!
I’m uploading a screenshot of the error.

Thank you in advance

Max

Hello @Rick_Morphius
Please try this workaround : https://support.kingdomcomerpg.com/issues/448#note-4