The socket stub user attempted to open an SCTP socket, but SCTP support is not available. SCTP is only available on patched Linux kernels and is indicated by the presence of the file /usr/include/netinet/sctp.h The SCK stub will not be able to use the SCTP transport protocol.
Install the necessary kernel patch to support SCTP and rebuild the socket stub on a machine with the patched kernel.
Warning
Failed to open an SCTP socket - the OS does not support SCTP