Fatal error: Uncaught Error: Call to undefined function db_update() in /home/puertobr/public_html/modules3/simpletest/tests/upgrade/drupal-6.comments.database.php:2 Stack trace: #0 {main} thrown in /home/puertobr/public_html/modules3/simpletest/tests/upgrade/drupal-6.comments.database.php on line 2