I cant do anything because apparently i had a trial (but i bought ACTION!) and i can't find my key on any of my or parents g mail and it does piss me off. does someone think they could help me with this

Hey i have had action for a while and i recently got the "CRITICAL ERROR 106". So i deleted my action then updated and it say my "Trial" expired and i have bought it near Christmas when there was a sale on it. Now it is saying i need a activation code and i can't find it in any of my E-mails so this...