TCPS-805 — The child process with given PID cannot be found in the scoreboard
A block shared memory (called "the scoreboard") is used for communication between the parent process and its children. Each child process occupies one element (slot) in the scoreboard. Sometimes, the proxy parent process needs to find a child process slot according to the process's PID. This message informs that the child with given PID is not registered in the scoreboard.