Fatal error: Uncaught exception 'InvalidArgumentException' with message 'Argument to Grav\Common\Errors\Errors::pushHandler must be a callable, or instance ofWhoops\Handler\HandlerInterface' in /public_html/robis.com.pl/system/src/Grav/Common/Errors/Errors.php:23 Stack trace: #0 /public_html/robis.com.pl/system/src/Grav/Common/Service/ErrorServiceProvider.php(38): Grav\Common\Errors\Errors->pushHandler(NULL, 'log') #1 /public_html/robis.com.pl/vendor/pimple/pimple/src/Pimple/Container.php(274): Grav\Common\Service\ErrorServiceProvider->register(Object(Grav\Common\Grav)) #2 /public_html/robis.com.pl/system/src/Grav/Common/Grav.php(67): Pimple\Container->register(Object(Grav\Common\Service\ErrorServiceProvider)) #3 /public_html/robis.com.pl/system/src/Grav/Common/Grav.php(40): Grav\Common\Grav::load(Array) #4 /public_html/robis.com.pl/index.php(33): Grav\Common\Grav::instance(Array) #5 {main} thrown in /public_html/robis.com.pl/system/src/Grav/Common/Errors/Errors.php on line 23