Modal window is not launching

I am getting an error when I try to launch a modal window from an entity list. URL is not capturing the id field. I see the following error when inspect in chrome.

URL of the hyperlink : ssqa.microsoftcrmportals.com/.../messages#

ssqa.microsoftcrmportals.com/_portalmodal-form-template-path/d78574f9-20c3-4dcc-8d8d-85cf5b7ac141?entityformid=9d96308e-4581-e711-8139-e0071b6a4261&languagecode=1033 404 (Not Found)

Thanks for your help and suggestions.