Troubleshooting

This problem particularly occurs when the views is upgraded to 3.x in Drupal 6.

Search for drupal_set_time_limit in Drupal directory and modify the line as below. Ensure that it is restored later once the required operation is over: For example: Modify the following line in locale.inc file in includes/locale.inc. <?php drupal_set_time_limit(240); ?> and set to 1800. -- Source https://www.drupal.org/node/2085515#comment-7845525