If your crontab is stalled on the server your host will need to correct this. Please have them check to see if the crontab is installed to run every 5 mins. If it is, please have them run the cron command under the user the cron is set to use, via command line and read the output. If there is a problem, the output will tell your host how to correct it.

WARNING - If your host runs the cron via ROOT or any other user, the cron will lock until it is cleared. An error message will appear in your error log accessibel on the admin panel front page.

The cron command line should look something like this(with the correct server path to your domain):

*/5 * * * * /usr/local/bin/php /home/username/public_html/<path_to_domain>/cms_admin/longqueue.php