Error after updating to php 8.1.22

-- Error-message(debug-mod must be tuned on) -- : Deprecated: strlen(): Passing null to parameter #1 ($string) of type string is deprecated in /home/customer/www/domain.es/public_html/media/com_hikashop/mail/payment_notification.preload.php on line 193

Hi.
A few days ago I updated my site's PHP to version 8.1.22.
Since then I have detected errors in the customer address fields, as well as in the payment confirmation emails.

I attach a screenshot of errors.

Hi,

For the first screenshot, change the line: to: in the file media/com_hikashop/mail/payment_notification.preload.php and it will remove these.
We'll add the change on our end for the next version.

Regarding the other screenshot, I don't see the file path in full in your screenshot, so I can't say what to do.
Could you please provide the full path where the deprecated message happens, like you did for the other deprecated message in the email ?

Hi.
/home/customer/www/domain.es/public_html/administrator/components/com_hikashop/classes/address.php on line 698
(in address - front)

Another URL with error.
/home/customer/www/domain.es/public_html/administrator/components/com_hikashop/classes/address.php on line 729
/home/customer/www/domain.es/public_html/administrator/components/com_hikashop/classes/address.php on line 698

Hi,

In the file administrator/components/com_hikashop/classes/address.php search for the code: you'll find it on 3 places. In each place, add just after it to get: and it will remove these deprecated messages.
We'll add the changes on our end too for the next version.

PS: note that these are not errors. They are messages for developers to update their code for future versions of PHP.
Normally, these deprecated messages shouldn't appear on a live website. So that means that you probably want to check with your hosting why these are being displayed and how to not have deprecated messages.

Solved.
Thanks.