Adzilla pages not working, and cannot contact. Anyone else seeing this?

I set up my domain and site a few weeks ago in adzilla based on the lessons. They worked at first, but now itā€™s been almost a week since any of the landing pages have worked.

Each page brings up:
This site canā€™t provide a secure connectiondfmarketing.store sent an invalid response.
ERR_SSL_PROTOCOL_ERROR

I have tried twice to go to contact in adzilla, and I get the whole form filled out, but when I subit, it always comes back with:
ā€œAn error occured while proccesing the form. Please try again
(Invalid Nonce. Please refresh your browser)ā€

Any help would be appriciated

Hey there. If you havenā€™t already, email [email protected] and they should get back to you within a few hours or a day by the latest.

If youā€™re seeing this error, I can tell you whatā€™s likely happening.
After a lot of narrowing down, it turned out to be my internet service providerā€™s problem. Their modem they provided me has some kind of ā€˜policeā€™ firmware. And it blocked my domain. Thereā€™s a place where you can see what it does, and it comes up as ā€œquestionableā€, then blocked. Not for any particular reason, that I did, just did. I say call your internet provider and bring this up if you see this issue.