How to fix my serial number for the Tom Papen LinPlug Albino 3 VST?

my friend recently gave me Albino 3 as a present because i've been making music on FL Studio for a while. however, when i installed it, it asked me for the Serial Number and i made a mistake as i was typing it in. because of this, Albino 3 isn't working (if the serial number is wrong, the program doesn't play any notes as a defense against illegal installations). anyways, i try to go back to where i can re-type the serial number, and i can get to it, but it doesn't let me type anything into the box. i tried uninstalling it and re-installing it, but that doesn't help because FL Studio remembers that i had it, and remembers the wrong serial number that i typed. i went on the company's forums and everything and didn't find anything. is there anything that i can do to fix this?