Unable to connect to Cache box at port 80

I run a port scan, and I can see port 22 and port 80 is open. When I try to open in browser, it throws an error.

The connection has timed out

The server at 10.10.10.188 is taking too long to respond.

I am connected to openvpn and I can also ping to box. Is there anything wrong in my setup or something is wrong on server end?