Same here, my wordpress installation gets down since it can't access to their wp database. The MySQL users also dissapeared. In phpmyadmin works great all. Also I've got the problem while loading the cpanel, i've got the blank page. I just use a workaround for it, just changing .php to .html in the web address after logging it. Hope you have no problem fixing it. Until then, I will make a database backup, just in case. Greetings!