I've read other entries regarding this error, but I have not been able to solve the problem. This situation is this:
I have an instance of Moodle on Server A. It works well, the app connects, etc. This is my test case.
I copied the test server to Server B. Now I am able to connect to the server via the app, enter my login information, but when retrieving the course listing, I get this error.
Any thoughts on what might to look at that might be different between the two servers and causing the problem. Or is there somewhere that errors from the app are logged? I can't find a reference to such a thing.