Paypal payments not working

Hi there, i had my website built by a developer who lives abroad.
i’m using gravity form with Stripe add on but not paypal. although the checkout form accepts both methods (I’m not sure how is that happening)
the site was working until an issue occur and now Paypal payments show an error “the error looks like a validation error saying that the card fields are empty although the payment method was paypal not card”
i had a look at all settings and found no addon for paypal is installed but paypal always worked in the past without the addon.

can someone help me by directing me to where the paypal settings might be?

By the way when i hover over form settingsd i can see stripe settings but not paypal.

any hint might help please.

Thank you in adance

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