AKpilot57

I've used the GTN 750 for the past couple years without issue. No changes were made... took about a month off from flying due to work.. logged on and flew a few flights. No issues there. Log on the next day and it crashes.. says GTN 750 caused crash. I removed the folder.. flew a few flights.. put the GTN folder back in.. started working again. Flew a few flights and then it crashed again upon loading with the same issue. This time no matter what I do as long as the GTN is in the plugins folder. within 5 seconds of being loaded in for a flight it freezes and crashes.

I have purchased and installed the GTN 750, upon finally getting it to work in the Sim it now tells me my Reality XP Software is Expired or Invalid? I have a key and installed it properly (or so I think). What is my next course of action?