Problem "sorry but this program can only be startes once"

Hey guys. I am new user of GSA ranker. I received email from GSA with serial Number after i buy the software.
However, i install progam and try open program but it's can't open! This 's message!


Please advise me for this problem.

image link is broken. However you better write an email directly to GSA as license issues are not discussed on a public forum.