VMware Identity Broker 9.0.x
One (or more) of the VMware Identity Broker postgres containers in VMSP have run out of disk space - possibly due to WAL files filling the disk.
Log in the VIDB appliance VMs as root via SSH or vSphere console and check if any of the Docker overlay partitions are 100% utilized using the command df -h
Contact Broadcom VCF Support and reference this KB