So here's a story for you.
Once upon a time, there was a beautiful princess who lived in a small kingdom. The kingdom was high atop a mountain. When the princess was born to the king and queen, the whole kingdom rejoiced. Her face was so beautiful that the stars in the heavens sighed with amazement. People came from afar to pay tributes to the king and queen, and to catch a glimpse of the princess. They all left amazed.
As the princess grew up, suitors came for her hand. Always, the king and queen turned them all away, saying, "She is still not of age. Come again when she is older."
When the princess had grown up, the king and queen said, "She is now old enough. Let us find her a proper suitor."
The king and queen then issued a challenge and a promise: They would build a tall tower, armed with defences. Every month, for three weeks, brave princes could come and try to conquer the tower. If they breached its defences, they would find the princess at the very top. And then they could have her hand in marriage.
But for one week in each month, no man was allowed to come near the tower, because it would be under maintenance mode. Anyone who came near would see a signboard with the big letters, "404: Under Maintenance".