Just upgraded and emclient spontaneously shuts down

Today, July 15, 2020 I got a message that emclient had an update, so I downloaded it. I think it was to upgrade to latest version. All went well until I opened to see my email. Well, after checking for problems my “new” version shows up only to auto shut down after about 5-10 seconds. I can reopen but every time same thing, auto shut down.
How do I correct this problem?
Chris Ellis