Using Phone hotspot website show 404 error

When we are using mobile phone hotspot, my website show error as below

Oops, looks like the page is lost.

This is not a fault, just an accident that was not intentional.

By the way, i am from Malaysia.
Do you have any ideal what happened?

That isn’t a Cloudflare error from the looks of it. Unless this is from a cloudflare.com website, you’ll have to contact the site owner.