Deprecated: WPForms\Integrations\Stripe\Admin\Builder\Traits\ContentTrait::get_customer_phone_field(): Implicitly marking parameter $plan_id as nullable is deprecated, the explicit nullable type must be used instead in /home/siconne/old/delete/wp-content/plugins/wpforms-lite/src/Integrations/Stripe/Admin/Builder/Traits/ContentTrait.php on line 657