Help getting the landing page URL on webform to work

Help getting the landing page URL on webform to work

My website is built in Business Catalyst.
I have created a webform to lead and placed it successfully onto a page.  It is delivering data into Zoho.
The problems is with the landing page URL
I have created a page on my website and used that URL
But when I test it, I get a browser (firefox and chrome) error saying that the connection is not secure.
Firefox then says that the error is "about an invalid security certificate. The certificate is only valid for the following names: *.worldsecuresystems.com, worldsecuresystems.com (Error code: ssl_error_bad_cert_domain)"
I know that these are Business Catalyst domains - but I'm not sure how to fix this.  Is there a workaround?
Can you assist?
thanks