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This was a HA installation where a node of the FMS was 5.7.1. One of the other nodes must have been updated to a higher version which updated the repository schema.
해결 방안
The 5.7.5.4 schema was introduced on 5.7.5.1 or higher FMS.
The FMS software version is 5.7.5 (fms -v) so the resolution is to upgrade the software to the Latest FMS software available on Supportlink.