Hi Brianw,
Sorry for the delay in response.
Please take help of the steps provided in this help document Adobe Sign Help | Signing with Adobe Sign for "In person signing with Adobe Sign mobile application.
Also, try once to open this link Sign In — e-signature and e-sign Software Solution — Adobe Sign on the browser.
Then sign-in to the application and go to My Profile.
Click on Edit and check all the information in the fields are filled.
If the issue still persists, please contact the support team to get this checked.
For the subscribed account, find below the steps to contact support:
• Login to your Adobe Sign account directly via Sign In — e-signature and e-sign Software Solution — Adobe Sign
• Once logged in, check the upper right corner of the page and click the question mark icon.
• It will re-direct you to the page where you get the option to create the support case or to start a chat with the team.
• If you've never logged in this way, use the forgot password option on the login link to set your password.
Let us know if you need any help.
Regards,
Meenakshi