Fatal error: Uncaught Error: Interface 'Kreait\Firebase\Database\Query\Modifier' not found in /home/rrcwnqvo/public_html/vendor/kreait/firebase-php/src/Database/Query/Sorter.php:10 Stack trace: #0 {main} thrown in /home/rrcwnqvo/public_html/vendor/kreait/firebase-php/src/Database/Query/Sorter.php on line 10