I’m no longer able to create topics via Lenses and this message keeps appearing, what could be the problem?
The topic settings configured in Lenses cannot be applied because of the insufficient Kafka brokers. This is likely to be due to some broker being down or decommissioned
![](https://europe1.discourse-cdn.com/standard20/uploads/lenses1/original/1X/fc6135663c0ba1f9dc3903b12d02b788c02cd0bf.png)
Hello Edward_k,
You will need to check two things. First, make sure that the Kafka brokers are running. The second is the minimum number of in-sync replicas configured for the topics, because if a broker fails, you won’t have the minimum number you configured. This can be checked in the Administration area under Kafka Settings and Topic Settings.