Thread:Project:Support desk/Decipher failure message

The following failure message occurred when attempting database entry. Examples include submitting new wiki entries, edit pre-existing pages and sending email verification. Please advise for appropriate course of action.

Warning: require(/mnt/target03/360794/605927/www.gamification.co/web/content/EngageDB/includes/UserMailer.php) [function.require]: failed to open stream: Permission denied in /mnt/target03/360794/605927/www.gamification.co/web/content/EngageDB/includes/AutoLoader.php on line 1160

Fatal error: require [function.require]: Failed opening required '/mnt/target03/360794/605927/www.gamification.co/web/content/EngageDB/includes/UserMailer.php' (include_path='.:/usr/share/pear:/usr/share/php') in/mnt/target03/360794/605927/www.gamification.co/web/content/EngageDB/includes/AutoLoader.php on line 1160