I created a new user and got into phpmyadmin but don't see anything awry. A lot of spam-ments that I emptied out. Could getting a lot of comments disrupt something or exceed usage limits?
"Error establishing a database connection"
Nothing changed in the account, so don't think it's something I can fix. Can access cpanel but not phpmyadmin:
#1045 Cannot log in to the MySQL server
DB credentials look correct.