I can't login on the PBE server but I can login here on boards?

It's been awhile since I logged in on my PBE acc (like a few months) and just now I'm trying to log in but it says incorrect username/password. I tried restarting the client few times but still nothing and I eventually changed my password through email. Even with the new password confirmed I still can't log in and it still says incorrect password/username. Any ideas? Thanks! EDIT: Just a few days ago I changed my summoner name on the account that is linked to this PBE account. Don't know if that could somehow impact this bug.
Report as:
Offensive Spam Harassment Incorrect Board