string (23) "Lectures are not valid:"

$data[...] array (0)

⧉

Called from <ROOT>/app/Controllers/Front.php:149 [dd()]

<ROOT>/vendor/codeigniter4/framework/system/CodeIgniter.php:896 [App\Controllers\Front->viewPDF()]
<ROOT>/vendor/codeigniter4/framework/system/CodeIgniter.php:466 [CodeIgniter\CodeIgniter->runController()]
<ROOT>/vendor/codeigniter4/framework/system/CodeIgniter.php:349 [CodeIgniter\CodeIgniter->handleRequest()]
<ROOT>/index.php:55 [CodeIgniter\CodeIgniter->run()]