Intrusion Prevention help

Dear Team,
I have bought wanfail over plugin and here is my network:

I have 2 ISP and 1 server. From both networks i have port forwarded port 80 to my server.

In intrusion prevention i have a lot of:

robots.txt access
Setup.php access
bad HTTP/1.1 request, Potentially worm attack

They are not blocked by default. As I do not know what this means i decided to ask you.
Is this s real attack and i need to turn blocking on?

Or what dos this mean?

Thank you very much