Note: This was originally posted by an inactive account. Content was preserved by moving under an admin account.
Akihiko:
We did have some issues with license files not being named appropriately, and thus, the system not recognizing them. Could you try and download the license file from the original email sent to you once more? The file will need to go into the <Dataverse installation directory>\docs\license directory and be named Lae_3.0_License.lic. A restart of the Dataverse services may also be required.
View more information on Applying a License after Installation in the help documentation.
Please let us know if this resolves your issue.
Regards,
Josh