This will help how to solve SD Connect C4 EPC application error “Unable to launch the application”.
Update to the latest Java:
Just Google java and the top option was java.com. Within that option, there was a download option (still on Google at this point)
Click that for the latest Java , now: Java 8, Update 91
Download and install
Hopefully it will get you into EPC as well and it works fine.
Usually, it’s a good way to start working again when you did the latest Java update.