Now that the V11 Beta has expired, you need to change the license number associated with the Full Version of A5V11. You were previously using a beta license and now the beta has expired.
(These comments do not apply to the Application Server as the Server did not require a license during the Beta period.)

There are two ways to do this

1. Start Alpha Five and before opening any database, go to View, Settings, License and enter your new license. Save. Exit. Restart Alpha Five.
2 Exit Alpha Five and then delete this registry key: HKEY_CURRENT_USER\Software\Alpha Software\Alpha Five 11.0\USER