Issue with Facebook Verification: "Connection is Not Private" Error Despite Let's Encrypt R3 Certificate

[NIEOKY]

Hello,

I'm encountering a problem while trying to verify my app on Facebook. I submitted my app's link for the verification process, but it was rejected due to an error indicating they couldn't connect because"connection is not private" my app domain already have a Let's Encrypt R3 certificate. I'm puzzled as to why this error is occurring, and I am looking for insights or solutions to address this issue and successfully undergo Facebook verification.

These are the permissions I'm asking for advance access pages_show_list, pages_manage_metadata, pages_messaging, Business asset user profile access, and i´been following this guide https://github.com/orgs/chatwoot/discussions/3397

Thank you for your guidance.