When all the rows in a loop fail to be fetched, $inSQL is empty, and the last query (DELETE FROM ezpending_actions) will fail with a fatal error.

This comes from the "if ( $fileContentCache[$source] === false )" that doesn't do anything if fetching fails. All failing items will remain undeleted frm the DB, and the last loop will fail.

We need to figure out a proper way to handle failing URLs.