Confluent Control Center doesn't post broker information

Hello All,
I have a problem with Confluent Control center. It would be great If you can help me on this topic. My control Center Consumer lag increasing and it is not posting broker information any more…I have tried renaming the in the properties file and when the consumer is renamed, it works for some time. But again the problem occurs. I am using confluent version 5.1.2. Can any one please help?