Hello.
Open explorer and paste in the address bar field the link below –
C:\Users\USERNAME\AppData\Roaming (where USERNAME is indicated – enter your computer name)
Example:
C:\Users\Артем\AppData\Roaming – The computer name can be viewed in the system properties.
In this location there will be a folder EspritGames https://prnt.sc/w7z4pr, delete it, and uninstall the client itself via Add or Remove Programs. Restart your computer and try installing again. Report the result.