Hey there you need to use sample code :

public function employees_management()
{
$this->config->load(‘grocery_crud’);
$this->config->set_item(‘grocery_crud_dialog_forms’,true);
$this->config->set_item(‘grocery_crud_dialog_color’,’unique-color’);
$this->config->set_item(‘grocery_crud_dialog_text_color’,’white’);

$crud = new grocery_CRUD();

$crud->set_theme(‘mdb’); // magic code
$crud->set_table(’employees’)
->set_subject(‘Employee’)
->columns(’employeeNumber’,’firstName’,’lastName’,’email’,’officeCode’,’jobTitle’)
->set_relation(‘officeCode’,’offices’,’city’);

$crud->display_as(’email’,’E-Mail’)
->display_as(’employeeNumber’,’ID’)
->display_as(‘firstName’,’Name’)
->display_as(‘lastName’,’Last Name’);

$crud->required_fields(‘firstName’,’lastName’);

$crud->add_fields(‘firstName’,’lastName’,’email’,’jobTitle’, ‘officeCode’);

$crud->unset_bootstrap();

$output = $crud->render();

$this->_example_output($output);
}

and implement in to your Grocery CRUD. Also if you can sent your platform info such as FTP info, we can help better to you. here is the our contact form https://themeofwp.com/contact/

Thanks
Kevin J.