Using uptime robot - 404 not found?

I am using Uptime Robot to monitor & keep my node.js app ‘alive’. However, I keep getting a 404 not found error on Uptime Robot. This is a screenshot from uptime robot

And my url for my glitch project is

The URL’s are exactly the same, So why wont it work?

I can’t reproduce a 404 error. Your project responds with a 200 success message, so appears to be set up ok. Perhaps uptimerobot is timing out too quickly if the project is asleep. Does uptimerobot provide any logging or further error reporting? If problems persist, I suggest following up with uptimerobot.

maybe this response might be useful to you? [Discord] Bot Shutting Down