Check out this link from their website
https://jcesom.marshall.edu/media/58991/new-application-requirement-for-the-2021-cycle_vita.pdf it says " To further enhance our holistic review process during the 2021 application cycle, we are requiring applicants who have been invited to interview to complete the Video Interview Tool for Admissions (VITA), administered by the Association of American Medical Colleges (AAMC). The AAMC VITA was designed to complement our live virtual interview process -- and not replace it."
I just received a VITA interview invite from Marshall today as well so as soon as that is completed, they will schedule the the live virtual interview.