Your question is Diagnosing an Operations Breakdown. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Tell me about a time you used data to identify the root cause of an operational issue. Walk me through how you separated symptoms from the real problem, what actions you took, and what changed as a result.