AMQ Broker GUI Strange Display and logs

Issue

We are facing below error in one of our broker clusters.

1. We are not able to see broker GUI as it shows ***** in all fields.

2. Also it throws exception message popup when accessing various table like connections/consumers etc.

3. We are seeing below entries in broker log. They get repeated for all addresses in broker.

2021-05-13T07:06:05.642Z INFO  [org.apache.activemq.artemis.core.server] org.apache.activemq.artemis:broker="broker-01",component=addresses,address="LOCAL_UAT.IN" getUnRoutedMessageCount false
2021-05-13T07:06:05.642Z INFO  [org.apache.activemq.artemis.core.server] org.apache.activemq.artemis:broker="broker-01",component=addresses,address="LOCAL_UAT.IN" getRoutedMessageCount false
2021-05-13T07:06:05.642Z INFO  [org.apache.activemq.artemis.core.server] org.apache.activemq.artemis:broker="broker-01",component=addresses,address="DLQ" getAddress false
2021-05-13T07:06:05.642Z INFO  [org.apache.activemq.artemis.core.server] org.apache.activemq.artemis:broker="broker-01",component=addresses,address="DLQ" getMessageCount false