Hi.
I have upgraded PS from 1.6.1.23 to 1.7.8.6.
When i want to add new address as a customer i got errror "Please fix the error below". I cant add new address either in checkout process and in customer account. I tested it on default classic theme.
I can add address from backend customer form.
I found similar issues but without any solutions
https://github.com/PrestaShop/PrestaShop/issues/15957
https://github.com/PrestaShop/PrestaShop/issues/26925
validateCustomerFormFields class is registered in database (ps_hooks).
PHP version 7.4
Clearing /var/cache didn't help