Hi Quetzel
Not sure if u have resolved this issue yet. I've been using the Suite quite happily since last August, no problems. but I was playing around with Prelude and all was going well until it crashed and then nothing seemed to be working at all. So instead of hunting for several hours and getting nowhere as is normally case. I took all the Adobe Apps off and reinstalled. I currently have Cloud membership.
When I came to update, I got this same error which I have never seen before. I went into Users folder (I am on Windows 64-bit Pro) and inside there, go to the Local, LocalLow and Roaming folders. Go into each Adobe folder once there and look for any called AMT, go in and delete all the files. this should reset the updates cache. It worked for me. I cannot offhand remember which folder AMT is in and I am AFK at moment. Try it, and let me know how u get on. I will check first thing tomorrow am (GMT as in UK). And amend post if needed
