Error on orders page

-- HikaShop version -- : 4.4.4
-- Joomla version -- : 4.2.2
-- PHP version -- : 8.1

Hi
I recently updated Joomla to 4.2.2.
when I click on orders page in admin, I get the following error :
0 date(): Argument #2 ($timestamp) must be of type ?int, string given

how can I fix that ?

Hi,

That's a new error.
Please activate the "debug" setting of the Joomla configuration and try again.
It should display an error message with more information.
Please provide this so that we can better understand what's going on.

just enabled debug
screenshot of what i get when I click on "orders" is attached

Any updates ?

I just realized that this error refers to my php version

If I put the php version on 7.4, the error is gone

but I want to keep my 8.1
what should I do ?

Hi,

Your version of HikaShop is not compatible with either Joomla 4.2 nor with PHP 8.1.
Updating your HikaShop will fix the problem as the code of the file where your error is has been changed to use hikashop_getDate() instead of the date() function several versions ago. This avoids issues with PHP 8 and also provides a better display of the date in accordance to your Joomla setup, etc.

thank you