SDI failed to make signalling library call
SDI tried to send a request to a configured signalling process but the request failed. This may be either because the process has not been started or because it has crashed. Check the `rc' field against $VAE/db/current_dir/ca/include/slcommon.h.
Check that any signalling processes in use are started and that no core files are found in $VAEBIN. You should also check that the correct signalling process is configured by using System Configuration on the Configuration menu to check the value of the Signalling Process Type parameter in the Channel Group parameters group. It may be useful to check the errno value against those in /usr/include/sys/errno.h.
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Log, System Monitor