That screenshot you've now provided is a 404 error, meaning the page you tried to access wasn't found. The address is localhost, so are you running both SSRS and your website on the same server, and is that screenshot also from that same server?

Edit: Further to this, I suspect this is not the case, as I just noticed that the taskbar shows you are on WiFi. I would not recommend running a website or a SQL Server instance over a WiFi connection, it's asking for trouble.

This tells me you're trying to access a webpage on another server, using the address localhost. Localhost always points to the local host (the machine you're on). You'll need to replace localhost with the name of the server that page is hosted on. For example. if your SQl Server is named "SQL14" then the webaddress http://localhost/reports should be http://SQL14/reports.