Displaying Datetime field from DB returns string error

Hello
I'm willing to display dates, saved in database as Datetime format.
Insert & Updates are working perfectly fine.
But when displaying and localizing this field with :

Code:

<?= $task->expired_at->toLocalizedString('d MMMM yyyy'); ?>

I'm getting the following error :
Call to a member function toLocalizedString() on string
Can anyone please help ?
Thank you

It seems your $task->expired_at has a string value.

Check the Entity config.
See https://codeigniter4.github.io/CodeIgnit...e-mutators

ci-phpunit-test | CodeIgniter Testing Guide | CodeIgniter 3 to 4 Upgrade Helper

Many thanks @kenjis
That was exactly the issue !