Alright, I found a way how to fix it. If you have this proplem try doing these steps. If it still doesn't work for you then I can't help, it worked for me tho so if any of you encounter the same proplem as I do try it.

https://www.reddit.com/r/operabrowser/wiki/opera/import_passwords

Hello there Opera community. So I recently installed Opera GX today and I'm happy with it but I encountert a bug. I tried to import all my saved passwors from chrome but it sadly didn't work. Everything else imported correctly but the passwords didn't. If this happend to any of you befor and you know how I can fix this please let me know. Thanks in the beginning for all responses.