Account Credentials

Every time I try to log into my account it says 'account credentials not valid' even though I'm using the right user name and password. This happened after I changed my password, any help?

Well clearly you aren't using the right email and password combo :P

But when I put the password and email in I get into the account, it's when I try to enter the game it doesn't work. http://prntscr.com/bzo3jq