I am trying to download instructions for my ez-robot for off-line use (because I am showing the robot to students in an area with no Internet connection).

When I go to https://therobotprogram.com/Uploads/1.mp4 in Firefox, I get:

Your connection is not secure

The owner of therobotprogram.com has configured their website improperly. To protect your information from being stolen, Firefox has not connected to this website.

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Report errors like this to help Mozilla identify and block malicious sites

therobotprogram.com uses an invalid security certificate.

The certificate is only valid for the following names: synthiam.com, www.synthiam.com

Error code: SSL_ERROR_BAD_CERT_DOMAIN

I get a similar message in Chrome.

According to the messages, there is nothing I can do except contact the website admins, which I am trying to do now. How can I get this fixed?