fluentd crashing after upgrade to openshift-logging 5.2.4-17

$ oc logs -f fluentd-ldd9b fluentd
Setting each total_size_limit for 4 buffers to 4811272243 bytes
Setting queued_chunks_limit_size for each buffer to 573
Setting chunk_limit_size for each buffer to 8388608
2021-12-28 15:32:41 +0000 [warn]: '@' is the system reserved prefix. It works in the nested configuration for now but it will be rejected: @timestamp
2021-12-28 15:32:42 +0000 [error]: config error file="/etc/fluent/fluent.conf" error_class=Fluent::ConfigError error="Unknown formatter plugin 'single_json_value'. Run 'gem search -rd fluent-plugin' to find plugins"

apiVersion: v1
items:
- apiVersion: logging.openshift.io/v1
  kind: ClusterLogForwarder
  metadata:
    annotations:
    name: instance
    namespace: openshift-logging
  spec:
    outputDefaults:
      elasticsearch:
        structuredTypeKey: kubernetes.labels.logFormat
        structuredTypeName: json
    outputs:
    - name: rsyslog
      syslog:
        facility: local0
        payloadKey: message
        rfc: RFC3164
        severity: informational
      type: syslog
      url: 'tls://example.com:5514'
    pipelines:
    - inputRefs:
      - audit
      - application
      - infrastructure
      name: syslog
      outputRefs:
      - rsyslog
      - default
      parse: json
kind: List
metadata:
  resourceVersion: ""
  selfLink: ""