I was registering a user account online at a sports club and got an Error Prompt saying "Can we get a spot"? See my picture below.
In a gym, to "spot" for someone means to help them with heavy weights - either to get them into a starting position, or to be ready in case the weight slips so that they don't hurt themselves.
From wiktionary, definition 12:
(gymnastics, dance, weightlifting) One who spots (supports or assists a maneuver, or is prepared to assist if safety dictates); a spotter.
In this case, they are making a joke with their 404 page. "Can we get a spot" means "Something went wrong and we need help".