@leocg It's ok, thanks, I have managed to fumble through it. I think there was another login in the Opera still active using the same user name or something. The connect to Google enables synchronizing of bookmarks across different devices. I think. I am just muddling along with this.

@leocg Thanks, that's worked. I have changed my Opera account email and password, but now I cannot connect it to Google because it's already linked to another account (the old one presumably).