@oblessedone What password?

@fatimaansari except those options are not presented in the mobile version (or the latest PC version, either).
Oddly, I was able to sync all of my bookmarks, which I don't care about, but still can't sync the passwords.

@ton-hbc Have had this same problem for a while now

@leocg using my credentials

Opera is horrible in that aspect.
It asks me if I want to remember the password, then the next hour it already forgot

@dimistat It's not possible as far as I know.

On your Android device, open the Settings app and click Google Account.... On the Security page, tap the Security button.... You can access passwords from websites that you are logged into via Saved Passwords....

@yamaha4free So it seems that cookies were also lost.
I guess that the profile directory was reset or a new one was created.