Fatal error: Uncaught Error: Interface "Symfony\Component\CssSelector\Parser\ParserInterface" not found in /home/mydemotec/public_html/rms/vendor/symfony/css-selector/Parser/Shortcut/HashParser.php:29 Stack trace: #0 {main} thrown in /home/mydemotec/public_html/rms/vendor/symfony/css-selector/Parser/Shortcut/HashParser.php on line 29