@neetesha Thank you for your reply. The link disappeared after maybe 2 hours. I didn't have to do anything. This has happened before. It is correct that I might have copied the link address at some point.
@0pera-user I believe you are asking about "How To Lookup Password Manager in Opera Android? "
Answer : Go to Opera Menu (Opera Icon like 'O'). Click on Settings, Scroll down and tap on "Passwords" located in privacy section. Finally Click on "Saved Passwords" and here you'll see all the passwords you have saved so far! You can remove or modify any passwords from here.