Anyone please correct me.
But it seems to be a click-bait YouTube video, from a rather suspicious news source channel.
Quick Summary:
Poorly designed robot, not appropriately designed to handle stairs.
Falls down the stair way and breaks itself.
Hence click bait (like), so called, news-channel article(s), about this non-story (in my opinion).
Unless I've been sleeping too long and artificially alive/thinking robots, have been invented already?