We just upgraded our test site from v1.1.6 to v1.4 and my personal account experienced this problem. My co-worker did not -- which was reassuring.
My profile already had "Enable multiple journals" turned on. Turning that setting off and saving. Then turning it on again and saving solved the problem.
But yeah -- a more descriptive error message is needed.
FWIW.
We just upgraded our test site from v1.1.6 to v1.4 and my personal account experienced this problem. My co-worker did not -- which was reassuring.
My profile already had "Enable multiple journals" turned on. Turning that setting off and saving. Then turning it on again and saving solved the problem.
But yeah -- a more descriptive error message is needed.