I have upgraded from SDL Trados Studio 2017 Freelance Plus to SDL Trados Studio 2019 Freelance Plus. I have used both these programe on my 2 computers (desktop and laptop). Recently, I have found that I cannot use the 2017 version on my desktop (the licence expired!!??). I can still use 2017 version along with 2019 version on my laptop. And, I cannot reinstallthe 2017 version on my desktop because its licence DISAPPEARED FROM MY ACCOUNT. wHAT IS THE REASON FOR THAT! I have a very old laptop, where I had originally installed the 2011 version. It is still there and can be used and my account includes the licence. Could anybody help me.