Well as I stated I ve read it....
To use PixInsight on a machine where you don't have a valid license file—for example, because you have lost your license, or after a computer crash—you need to reactivate your license. You can also use a license reactivation to move a trial license to a different machine.
Follow these steps to reactivate your license:
Visit our software distribution system and log in with your user name and password.
On the software distribution main page, click the License Reactivation link.
Read the information given and click the Request License Reactivation link.
Our system will send you an email with a verification link. The email will be sent to the address that you have associated with your license. Read the email and click the verification link if you
want to reactivate your license.
! NOT RECEIVED! ....
so.....?