Adobe sign for Sharepoint

Hi all,

I 'm trying to use Adobe Sign in our Sharepoint site but although I can install it on sharepoint it state there's a problem with my license. 

I was checking our education account and it says we are entitled to Adobe Sign. I was following this guide: https://helpx.adobe.com/sign/integrations/microsoft-sharepoint-installation-guide.html

As anyone had such a problem? Are Adobe Sign for Sharepoint out of my license?

Thanks for all the help!