Fatal error: Uncaught Error: Interface 'Concrete\Core\Install\PreconditionInterface' not found in /home1/heyerarc/public_html/updates/concrete5-8.5.5_remote_updater/concrete/src/Install/Preconditions/TokenizerExtension.php:9 Stack trace: #0 {main} thrown in /home1/heyerarc/public_html/updates/concrete5-8.5.5_remote_updater/concrete/src/Install/Preconditions/TokenizerExtension.php on line 9