Paypal Error - Access Denied

After being sent to the Paypal payment page, the visit is blocked and the access was terminated with the following or similar error message:

Access Denied

You don't have permission to access "" on this server.
Reference #18.ed73017.1584035978.12a47ea4

This is not a or Paypal error. It is an error that your browser shows because it is being blocked from reaching Paypal.

We have only seen this error once, but it could be caused by your ISP or your antivirus software. Your ISP may have blocked Paypal for some reason. You might try rebooting your cable modem to see if that helps. If not, the only option is to us a computer on a different network.