Hi helloblustudio,
If no events are found for a given view then, by default, a 404 status is indeed returned.
Ordinarily however you would still see the correct view and you would see within it a message much like the one you suggested – here’s an example of what I mean from our demo site.
I’m not sure why you’re experiencing something other than that, but it does look like you have something of an atypical hosting setup insofar as you have what looks to be a Windows/IIS hosting package plus an IIS addon called Helicon Ape (which is responsible for the pariticular 404 error message you are seeing).
Could it be that Helicon Ape is interfering? I’m admittedly completely unfamiliar with Helicon Ape, but it looks as though the free trial period is up and that has some connection with the appearance of those messages.
Are you in a position to recativate it to see if that resolves this (or can you talk to whomever manages your hosting)?