I am having this exact same issue with "My Flow" that presented itself two days ago. I cannot get it to work in either of Opera (Opera One I guess?) or Opera GX which is my main browser for my desktop, laptop and iPhone. My mobile device can still access the chat for "My Flow" and see all the has been sent/said between my devices. However via the desktop I'm endlessly greeted with the same message that "Something went wrong" and to "Reset" or "Reload". (Attached are screenshot references from both Opera and Opera GX of the error message that's being shown.) Either option resolves nothing. Emergency reset resolves nothing. Uninstalling and starting into a fresh download of the browser resolves nothing. I've even tried not signing in after a fresh DL of Opera GX thinking my account had something to do with it not working literally at all. Still get nothing of change out of it.