Kafka Error: Error while starting connector test-couchbase

Hi Team,
I am getting following error while connecting couchbase to kafka.
ERROR Error while starting connector test-couchbase (org.apache.kafka.connect.runtime.WorkerConnector:108)
org.apache.kafka.connect.errors.ConnectException: Cannot fetch configuration for bucket bucket-name
at com.couchbase.connect.kafka.CouchbaseSourceConnector.start(CouchbaseSourceConnector.java:55)
at org.apache.kafka.connect.runtime.WorkerConnector.doStart(WorkerConnector.java:100)
at org.apache.kafka.connect.runtime.WorkerConnector.start(WorkerConnector.java:125)
at org.apache.kafka.connect.runtime.WorkerConnector.transitionTo(WorkerConnector.java:182)
at org.apache.kafka.connect.runtime.Worker.startConnector(Worker.java:183)
at org.apache.kafka.connect.runtime.standalone.StandaloneHerder.startConnector(StandaloneHerder.java:247)
at org.apache.kafka.connect.runtime.standalone.StandaloneHerder.putConnectorConfig(StandaloneHerder.java:173)
at org.apache.kafka.connect.cli.ConnectStandalone.main(ConnectStandalone.java:93)
Please hep with this.
Regards,
Manya