Your question is Missing a Deadline and Communication. 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).
Talk about a time you failed to meet a deadline and how you communicated that to stakeholders. Explain the circumstances, how you recognized the risk, what you communicated, and what happened afterward. Focus on your personal ownership, prioritization, and the steps you took to rebuild confidence.