I use AirVPN on my desktop and my android phone (Galaxy S7). Everything has been fine for years. But now, all of a sudden, when I open the AirVPN client on my phone and press the config file to connect with, it comes up with an error saying "Need PKCS file encryption key, enter password for key." I have never been asked this before. The only thing that has changed recently that I can think of is that Verizon recently updated the phone's software. As far as I know I have never been asked for a password other than to log into my AirVPN account, and then probably only once. Would this key want my AirVPN username password, or something else? I don't think I ever made/used/recorded a password for this "PKCS key". What should I do? I'm unprotected! Thanks...