Which section(s) is the issue in?
https://docs.openshift.com/container-platform/4.8/logging/cluster-logging-external.html#cluster-logging-troubleshooting-log-forwarding_cluster-logging-external
What needs fixing?
$ oc delete pod --selector logging-infra=fluentd
I believe should be
$ oc delete pod --selector logging-infra=collector
In 4.8