The Gateway daemon has become unregistered as a RRMS resource manager
RRMS has been restarted whilst this instance of the Gateway daemon was running.
All transactions through this instance of the Gateway daemon will fail.
If not using load balancing restart this instance of the Gateway daemon. If load balancing restart every instance of the Gateway daemon in the load balancing group and restart the master process. Refer to the CICS® Transaction Gateway Information Center for details on the correct shutdown and restart sequence.