The URL could not be validated. Either the page does not exist or the server can not

Hello,

I have been trying to add to my site justfees.com many free directories but I get an error.
"The URL could not be validated, either the page does not exist or the server could not be contacted, the URL already exists in the directory".
This is a new site and I have not sent any free directory before.
As I see, my site is redirected to https when it opens. I tried to send via https, but still the same error message appears.

there ssl problem on my site please help me.

Any suggestion would be greatly appreciated.

Thank you.
Justfees