We are aware of an issue where the PC Version cannot be updated, even after reinstalling the client. This is currently under investigation.
[Update 01/20/2022, UTC]
The issue has been resolved with a patch. Please, make sure to update your PC Client.
Thank you for your patience and we apologize for any inconvenience caused.
[Update 01/25/2022, UTC]
It has come to our attention that players are still reporting the same issue, even after updating the client to the latest version (5.0.28).
This has now been forwarded to the development team and it is currently under investigation.
Once again, we apologize for the inconveniences the situation may have caused you and we thank you for your patience while we fix this issue.
[Update 01/27/2022, UTC]
The issue has now been resolved. You should be able to update your client normally and keep playing.