A simple round wall clock without numbers.

Analog Clock

A speech bubble containing the numbers 502, representing a 502 Bad Gateway Error.

Speech Bubble With 502 Error

A laptop with a crack in the screen, a sad face with Xes for eyes, warning signs, and the numbers 404, representing a 404 Not Found error.

A rectangular sign held up by two posts, with the numbers 404, representing a 404 Not Found error.

A knocked over plant pot with speech bubbles containing ellipses and the numbers 502, representing a 502 error message. 

A rounded speech bubble with an analog clock without numbers.