Fatal error: Uncaught Error: Class "Concrete\Core\Page\Command\AbstractRebuildIndexCommand" not found in /home/elcrestweb/public_html/concrete/src/Express/Command/RebuildEntityIndexCommand.php:12 Stack trace: #0 {main} thrown in /home/elcrestweb/public_html/concrete/src/Express/Command/RebuildEntityIndexCommand.php on line 12