Open stack "MyStack" Not working

[Roger Guay]

All of a sudden, today, 

open stack “myStack”

Does not work. I results in this error:

Message execution error:

Error description: Handler: error in statement

Hint: message


So far, I’ve tried restarting my Mac (OS 10.13.2) a number of times and I’ve tried ditching the prefs, all to no avail. I get the same result on LC 7.1.3, 8.1.7 and 8.1.8.

Any ideas?

Thanks,
Roger