I am trying to publish message to  a Kafka Avro Schema using DataSet-Execute method  (Save),  The activity is returning Success but no data is being published to topic

Getting below error, Please suggest any solution

Conversion of ClipboardPage to GenericRecord has failed. 
org.apache.kafka.common.errors.SerializationException: Error registering Avro schema: {"type":"record","name":"call_identifiers_nonprod","namespace":"XXXX_consumer_YYYYY","fields":[{"name":"IdentificationNumber","type":"string"},{"name":"ZZZ","type":"string"},{"name":"WWW","type":"string"},{"name":"pyID","type":"string"},{"name":"pyLabel","type":"string"},{"name":"CurrentInteractionID","type":"string"},{"name":"pxCreateOperator","type":"string"},{"name":"pxCreateDateTime","type":"string"}]} 
Caused by: io.confluent.kafka.schemaregistry.client.rest.exceptions.RestClientException: Master not known.; error code: 50004 
	at io.confluent.kafka.schemaregistry.client.rest.RestService.sendHttpRequest(RestService.java:209) ~[kafka-schema-registry-client-5.1.4.jar:?] 
	at io.confluent.kafka.schemaregistry.client.rest.RestService.httpRequest(RestService.java:235) ~[kafka-schema-registry-client-5.1.4.jar:?] 
	at io.confluent.kafka.schemaregistry.client.rest.RestService.registerSchema(RestService.java:326) ~[kafka-schema-registry-client-5.1.4.jar:?] 
	at io.confluent.kafka.schemaregistry.client.rest.RestService.registerSchema(RestService.java:318) ~[kafka-schema-registry-client-5.1.4.jar:?] 
	at io.confluent.kafka.schemaregistry.client.rest.RestService.registerSchema(RestService.java:313) ~[kafka-schema-registry-client-5.1.4.jar:?] 

2. 

Caused by: org.apache.kafka.common.errors.SerializationException: Error registering Avro schema: {"type":"record","name":"call_identifiers_nonprod","namespace":"XXXX_consumer_YYYY","fields":[{"name":"IdentificationNumber","type":"string"},{"name":"ZZZ","type":"string"},{"name":"WWW","type":"string"},{"name":"pyID","type":"string"},{"name":"pyLabel","type":"string"},{"name":"CurrentInteractionID","type":"string"},{"name":"pxCreateOperator","type":"string"},{"name":"pxCreateDateTime","type":"string"}]} 
Caused by: io.confluent.kafka.schemaregistry.client.rest.exceptions.RestClientException: Master not known.; error code: 50004 
	at io.confluent.kafka.schemaregistry.client.rest.RestService.sendHttpRequest(RestService.java:209) ~[kafka-schema-registry-client-5.1.4.jar:?]