You have a time limit for script execution. Your script exceeded this time limit.

You can try to set an own time limit using the function:
set_time_limit() e.g.:
<?php
set_time_limit(30); //extend it to 30 seconds

In most cases this won´t work because it is forbidden by your webserver-configuration to override the setting.

Ask your provider to kindy raise the max_execution_time directive in php.ini

HTH, Max