Vegas Movie Studio 15 Platinum has stopped working and does not appear in my list of purchases when I login to my account,the message I get when I try to launch the program is I must register and activate which I have already done since I have been using the software off and on since 2018 I think I may have changed my email address since I activated the software but as I had many different email addresses in the past I don't know which one I used how do I get help with this problem it is so frustrating trying to find help I just keep going around in circles,Magic to Vegas back to Magix it is driving me crazy,surly if you change your email address all your purchases should update on your account other software I have bought from Magix prior to purchase of Movie studio 15 are there even an older version of Movie studio any help or advice on how to solve this issue will be greatly appreciated