Column not found when use model-> but using builder is work

I have this problema, i try this code:

PHP Code:

$img = $mImages->where('act_img>', 0)
 ->where('nom_img', $image)
 ->first(); 


And show error column act_img not found, the field exist in database, and work with this code:

PHP Code:

$builder = $this->db->table('images i');
 $builder->where('i.act_img>', 0);
 $builder->orderBy('i.pos_img', 'asc');
 $query = $builder->get(); 


I use codeigniter 4.1.8, with xampp 8.1.2, php 8.1.2, os fedora 35 x86_64