Fatal error: Uncaught Error: Class "GrumPHP\Linter\LintError" not found in /home/addup/public_html/panel/vendor/phpro/grumphp/src/Linter/Json/JsonLintError.php:11 Stack trace: #0 {main} thrown in /home/addup/public_html/panel/vendor/phpro/grumphp/src/Linter/Json/JsonLintError.php on line 11