I have found recently that if I leave snap (s3 toolbox) open on my desktop and leave and come back to it after a while, I am unable to open any images from the product explorer. I get an error (snapshot attached). I have recently reinstalled the most recent version of SNAP on my machine (windows 10).
Thanks,
Caroline
(upload://8apa8oEyb0btIUFKELFSdt0DuBQ.png)