No,uninstalling and reinstalling spybot isn't likely to work.You need help with the file I think,I don't remember license.key being a normal file.You should check your email's spam folder,to make sure you haven't received an answer to your email from Spybot support,in case it was put in there and missed.If there is no answer in your spam email folder,try contacting Sales:
https://www.safer-networking.org/contact/sales/
You should get a response from there.If something happenes that you don't in a day or so,please post back here,I'll try to help.