PHP ERROR

Hello,

I have a problem since wordpress 6.1.0 updates

I can’t enter a quantity or increase the quantity of products with a variation.
I can add one item at a time, then change the quantity in my basket.
This problem only occurs with variable products.

Recently I got this message in my wordpress dashboard:

• File wp-db.php is <strong>deprecated</strong> since version 6.1.0! Use wp-includes/class-wpdb.php instead. in /home/accrocha/www/wp-includes/functions.php on line 5643
• Notice: A feed could not be found at https://wpshout.com/feed; the status code is 403 and content-type is text/html; charset=UTF-8 in /home/accrocha/www/wp-includes/class-simplepie.php on line 1787
• Log file: /home/accrocha/www/wp-content/elm-error-logs/php-errors.log (464.81 MiB)

I think this is connected to my problem but i can’t find the line where i have to modify the code

Can you help me clarify the problem

Thank you for your help

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