Paypal-zettle site blocked due to URL:phishing

Hello David,
Thank you for contacting AVG Community Support.
We regret the inconvenience caused. We'll certainly check and help you.
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I recently signed up for Paypal-zettle to take POS payments.  I'm unable to access any link to their sites being blocked saying URL: phishing Help!

Hello David,
Thank you for contacting AVG Community Support.
We regret the inconvenience caused. We'll certainly check and help you.
We've sent you an email with further details. Please check your inbox/spam folders to find the email and use it to get back to us.
Thank you and keep us updated.