Nevertheless, please take a moment to bring this thread to closure ... for the benefit of the next person who encounters it.   What was the complete error message (that turned out to be “the needle in the haystack”), and, briefly, how did you recognize the nature of the problem, how did you solve it, and how did you know that the problem was gone?

Forum threads are an information resource that will be consulted for years to come, by people who are, like you, in a hurry to remove a boulder from their path.   We all rely upon each other.