That's because the /RPC2 interface was for the old version 0.3 of Browsershots which moved to http://v03.browsershots.org/ for historic reference.
4.
Go to website
5.
Javascript versions
6.
None
7.
Link Not Found
8.
Please write the bug report in English.
9.
My menu appears twice in the screenshots. Why?
10.
Browsershots tests your website's compatability on different browsers by taking screenshots of your web pages rendered by real browsers on different operating systems.