Warning: Uncaught ErrorException: require_once(/var/www/html/demos/interactive/../../tests/ViewTester.php): failed to open stream: No such file or directory in /var/www/html/demos/interactive/modal.php:5 Stack trace: #0 /var/www/html/demos/interactive/modal.php(5): atk4\ui\App::atk4\ui\{closure}(2, 'require_once(/v...', '/var/www/html/d...', 5, Array) #1 /var/www/html/demos/interactive/modal.php(5): require_once() #2 {main} thrown in /var/www/html/demos/interactive/modal.php on line 5

Fatal error: main(): Failed opening required '/var/www/html/demos/interactive/../../tests/ViewTester.php' (include_path='.:/usr/local/lib/php') in /var/www/html/demos/interactive/modal.php on line 5
!! ATK4 UI ERROR: Headers already sent, more headers can not be set at this stage. !!