Fatal error: Uncaught TypeError: Return value of Composer\Autoload\ClassLoader::initializeIncludeClosure() must be an instance of Composer\Autoload\void, none returned in /home/server126711/ftp/wamasz.pl/wp-content/plugins/widgetkit-for-elementor/vendor/composer/ClassLoader.php:580 Stack trace: #0 /home/server126711/ftp/wamasz.pl/wp-content/plugins/widgetkit-for-elementor/vendor/composer/ClassLoader.php(112): Composer\Autoload\ClassLoader::initializeIncludeClosure() #1 /home/server126711/ftp/wamasz.pl/wp-content/plugins/widgetkit-for-elementor/vendor/composer/autoload_real.php(28): Composer\Autoload\ClassLoader->__construct('/home/server126...') #2 /home/server126711/ftp/wamasz.pl/wp-content/plugins/widgetkit-for-elementor/vendor/autoload.php(25): ComposerAutoloaderInit4c012221b1eb33e12640573f2149d30b::getLoader() #3 /home/server126711/ftp/wamasz.pl/wp-content/plugins/widgetkit-for-elementor/widgetkit-for-elementor.php(39): require_once('/home/server126...') #4 /home/server126711/ftp/wamasz.pl/wp-content/plugins/widgetkit in /home/server126711/ftp/wamasz.pl/wp-content/plugins/widgetkit-for-elementor/vendor/composer/ClassLoader.php on line 580