[klippy]

Again, that message is not what what crashes your server.
Orpheu is a module that changes process's memory, so many things can go wrong. It's most likely not a problem in Orpheu but in that plugin you are trying to run. One of the problems could be outdated signature files, which is really likely as the mentioned plugin hans't been updated since 2010, but Counter-Strike has been. The 2013 update has indeed broke many existing signatures.