Fatal error: Uncaught TypeError: Argument 1 passed to Calendar\View\Helper\SquareTable::__invoke() must be of the type array, null given in /var/www/ud08_303/html/module/Calendar/src/Calendar/View/Helper/SquareTable.php:10 Stack trace: #0 [internal function]: Calendar\View\Helper\SquareTable->__invoke() #1 /var/www/ud08_303/html/vendor/zendframework/zendframework/library/Zend/View/Renderer/PhpRenderer.php(393): call_user_func_array() #2 /var/www/ud08_303/html/module/Calendar/view/calendar/calendar/index.portrait.phtml(2): Zend\View\Renderer\PhpRenderer->__call() #3 /var/www/ud08_303/html/vendor/zendframework/zendframework/library/Zend/View/Renderer/PhpRenderer.php(501): include('/var/www/ud08_3...') #4 /var/www/ud08_303/html/vendor/zendframework/zendframework/library/Zend/View/Helper/Partial.php(61): Zend\View\Renderer\PhpRenderer->render() #5 [internal function]: Zend\View\Helper\Partial->__invoke() #6 /var/www/ud08_303/html/vendor/zendframework/zendframework/library/Zend/View/Renderer/PhpRenderer.php(393): call_user_fun in /var/www/ud08_303/html/module/Calendar/src/Calendar/View/Helper/SquareTable.php on line 10