MSIR.0579 (Error type) PRSTOK item: (bad item)

This message indicates that you attempted to set the PRSTOK value for a Janus Sockets port (either with the JANUS DEFINE command or with a Janus Sockets $function), and that the value specified was invalid. 'Error_type' indicates the problem with the value, and 'bad_item' indicates the portion of the value that encountered the problem.