Elasticsearch sink connector

Hi,I am the new user of Confluent.I just use the confluent es sink connector to deliver the msg that’s in kafka to es.The source connector I use is debezium connector to motivate the db change event.According to the instruction of Confluent(Elasticsearch Service Sink Connector for Confluent Platform | Confluent Documentation), I configured the es sink connector zip in kafka plugin path,and changed the config file ‘quickstart***.properties’,changed the es uri,added the username and pwd of es and ensured the account had privileges of create index,read and write.I used the ‘For non-CLI users’ tip to launch the kafka connect service.And console log had no fault.But when I triggered the change event of DB,kafka had received the msg.But es had not created the index.Could you tell me how to locate the reason? Hope the reply!