It appears your disk space limit was incorrect -- I have lifted it up to 1 GB, which is what it should have been. You can reapply for unmetered space...
Can you give a few actual examples of what you are matching? From that one snippet I can't tell if id is supposed to be a comma-separated list, or if...
You can delete databases by going to the MySQL Databases icon in your cPanel. I see your account is using 2 databases and both are listed under that...
A blank white page indicates a PHP error. Unfortunately, it appears wordpress is suppressing the error from appearing in the logs, so I recommend you...