You'll see this error if the page uses a certificate that isn't set up right on your computer.

To fix the error, try these tips:

  1. On your Mac computer, at the top right, click Spotlight search .
  2. Enter "Keychain Access."
  3. In the results, click Keychain Access.
  4. At the top of your computer screen, click View  Show Expired Certificates.
  5. At the top right, click Search .
  6. Enter "DigiCert High" and press Enter on your keyboard.
  7. Find "DigiCert High Assurance EV Root CA" that's marked as Expired . Click the certificate.
  8. Press Delete on your keyboard.
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