Authorization error in user operator logs

Issue

I am continuously getting the below below WARN,but application teams are able to connect to produce and consume with the user credentials,not sure why i am getting this error continuously.

[2020-09-25 19:58:25,118] WARN  <ractOperator:330> [oop-thread-1] Reconciliation #5775(timer) KafkaUser(test-amqstreams/sa-test-user): Failed to reconcile
io.strimzi.operator.cluster.model.InvalidResourceException: Authorization needs to be enabled in the Kafka custom resource
    at io.strimzi.operator.user.operator.SimpleAclOperator.getAcls(SimpleAclOperator.java:215) ~[io.strimzi.user-operator-0.18.0.redhat-00003.jar:0.18.0.redhat-00003]
    at io.strimzi.operator.user.operator.SimpleAclOperator.lambda$reconcile$0(SimpleAclOperator.java:78) ~[io.strimzi.user-operator-0.18.0.redhat-00003.jar:0.18.0.redhat-00003]
    at io.vertx.core.impl.ContextImpl.lambda$executeBlocking$2(ContextImpl.java:316) ~[io.vertx.vertx-core-3.8.5.redhat-00005.jar:3.8.5.redhat-00005]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[?:1.8.0_252]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[?:1.8.0_252]
    at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) [io.netty.netty-common-4.1.48.Final-redhat-00001.jar:4.1.48.Final-redhat-00001]
    at java.lang.Thread.run(Thread.java:748) [?:1.8.0_252]
Caused by: org.apache.kafka.common.errors.SecurityDisabledException: No Authorizer is configured on the broker