Why unknow column 'slug_safelink' ?

Did you initialize the $allowedFields array in your Model?

PHP Code:

protected $allowedFields = ['nama_safelink', 'slug_safelink', 'url_safelink', 'hits_safelink']; 


Also, you don't really need the saveData, updateDate, and deleteData methods if you are using CodeIgniter 4's model.  CodeIgniter already has insert, update, delete, and save methods available to you: https://codeigniter.com/user_guide/models/model.html.