Unable to verify the license

Did you remember to activate the Key License File?

How to activate the Key License File

OR

The most other likely cause for this is that the SharePoint configuration cache is not synchronized.
You can clear it and it will automatically resynchronize.

Use the below link for more description on how to – Clearing the SharePoint Configuration Cache:
https://www.zubairalexander.com/blog/clearing-the-sharepoint-configuration-cache/