Hi,
I am sorry for trouble you for the license problem.  I have already send an email to you which includes all the detail information for your reference. 
Previous I installed ActiveSMS software on my development server to test and integrate the SMS application.  At that time, I active the license key which is sent from you.  But now problem comes.  I want to install ActiveSMS application to another server for test not previous development server.  When I active the license again, following error comes out. 
Could you please remove my previous product activation data and let me re-active this production in my current server?
Thanks. It is really an emergency job for me to finish this test.  Hope to hear from you soon.