Warning: get_class() expects parameter 1 to be object, null given in /app/public/wp-content/themes/gables/page-components-test-iframe.php on line 17

Fatal error: Uncaught Error: Class name must be a valid object or a string in /app/public/wp-content/themes/gables/page-components-test-iframe.php:18 Stack trace: #0 /app/public/wp-includes/template-loader.php(106): include() #1 /app/public/wp-blog-header.php(19): require_once('/app/public/wp-...') #2 /app/public/index.php(17): require('/app/public/wp-...') #3 {main} thrown in /app/public/wp-content/themes/gables/page-components-test-iframe.php on line 18