Hello,
this is my function..
// generate keyid
$crud->callbackAfterInsert(
    function ($stateParameters) {      
    $crud->where('pid', $stateParameters->insertId);
    $project = $crud->get('projects')->row();    
    $keyid = substr(str_shuffle(MD5(microtime())), 0, 18);
    if (!empty($keyid)) {
      $crud->update('projects', ['keyid' => $keyid]);
    }
    return $stateParameters;
});
Always gives error: <b>Fatal error</b>: Call to a member function where() on null in
But i dont understand... can someone help please?

 
                                