Fatal error: Uncaught Error: Class "PhpParser\Node\Expr" not found in /home/rcmch/test.m-s-i.ch/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/ArrowFunction.php:9 Stack trace: #0 {main} thrown in /home/rcmch/test.m-s-i.ch/vendor/nikic/php-parser/lib/PhpParser/Node/Expr/ArrowFunction.php on line 9