Hello,
as mentioned also by e-mail a few minutes ago, could you please check the situation again after a clean reinstall, following these steps? The folders I mention are not usually the ones used for project storage, but please make sure that the default project storage directory has not been changed to match one of them.
1) Uninstall the software normally, from the Windows panel.
2) Go to the path C:\Users\YourUserName\AppData\Local\Incomedia and delete the folder corresponding to your version of the software (it should be WebSite X5 – Pro).
3) Go to the path C:\Program Files and delete the folder corresponding to your version of the software (it should be WebSite X5 – Pro)
4) Restart the PC.
5) With the antivirus and firewall temporarily disabled, run as admin the installer you can find here: https://static.incomedia.eu/websitex5.com/v2024.4/2024.4.5.0/wsx5_pro.exe

Try to also switch from the WSX5 Hosting to Other provider, and back to the WSX5 Hosting.
I remain available.

Eric