Hi Hucker,
That message means Opera thinks your user profile was created or modified by a newer version of the browser, even though you’re on the latest version. This often happens if the profile files were corrupted during a force shutdown, especially while Opera was open.
To fix it, try renaming or backing up your current profile folder, then restart Opera—it will create a fresh one. You can usually find it in C:\Users[YourName]\AppData\Roaming\Opera Software. If Opera launches fine afterward, you can copy bookmarks and other data from the old profile into the new one.
Regards
