Attempting to backup the current environment prior to upgrading to 5.5 from 5.4. The job fails leaving a blank screen or the following message (Encryption is not selected).

Fatal error: Maximum execution time of 30 seconds exceeded in /home/chamberm/public_html/updates/concrete5.4.2.2/concrete/libraries/backup.php on line 123

The web site is on a host environment and at present I have no knowledge of its characteristics...sorry