Lotus Notes is a crime against humanity. In exhibit 001-H we see how Notes tells you that’s something wrong by telling you nothing.
You know when you do something that you’re not supposed to do? Or when the application encounters a problem? You get an error message. In a good application you get information that will help you to fix the problem. In a poor application you might get something less than useful. However as applications age and become more mature this aspect tends to improve (being something that most developers don’t give much attention to in initial versions).