I have Logos 5 on Windows 10. It has been fine until today. I've rebooted, but I get the same thing with no option to start it without waiting for the update.
Hi H Ray - and welcome to the forums.
Sorry to hear you are having problems.
To understand what is going on we would need to see logs - please see https://wiki.logos.com/Diagnostic_Logging for details of how to enable and post logs.
But I would recommend that you upgrade to Logos 6 first (as Logos 5 is no longer supported) and see if you still have a problem there.
The free core engine upgrade is available from https://www.logos.com/install
Graham
