If you, upon installing one of our apps, were prompted to install WebView2 but you declined, that could be the issue (99.9999999% of Win10\11 PCs have this installed already by some other app or Windows update itself). You could install one of our modern apps (Start11 v2, Fences 6, etc) and it would prompt to install it again. You can also get it from here:
https://developer.microsoft.com/en-us/microsoft-edge/webview2/?form=MA13LH
Should that fail, there is a Stardock.Notifications.log for it here, could you PM it to me or post a share link to it here (from GoogleDrive, OneDrive, etc)?
%LocalAppData%\stardock\notifications (paste that into Windows File Explorer)
Sean Drohan
Stardock Product Lifecycle Manager