Kafka connect with ibm-messaging connector not ingesting data into postgres - postgresql

Question

I am trying to ingest data from kafka-topic to postgres. I have successfully connected kafka and postgres through ibm-messaging/kafka-connect-jdbc-sink connector.Below is my jdbc-sink-connector file:
name=jdbc-sink-connector1
connector.class=com.ibm.eventstreams.connect.jdbcsink.JDBCSinkConnector
tasks.max=1
# Below is the postgresql driver
driver.class=org.postgresql.Driver
# The topics to consume from - required for sink connectors
topics=connector7
# Configuration specific to the JDBC sink connector.
# We want to connect to a SQLite database stored in the file test.db and auto-create tables.
connection.url=jdbc:postgresql://localhost:5432/abc
connection.user=xyz
connection.password=***
connection.ds.pool.size=5
connection.table=company
insert.mode.databaselevel=true
put.mode=insert
table.name.format=company
auto.create=true
Now in kafka-producer I am sending data as follows:
{"schema":
{"type": "struct","fields": [
{ "field": "id", "type": "integer", "optional": false },
{ "field": "time", "type": "timestamp", "optional": false },
{ "field": "name", "type": "string", "optional": false },
{ "field": "company", "type": "string", "optional": false }]},
"payload":
{"id":"1",
"time":"2022-02-08 16:18:00-05",
"name":"ned",
"company":"advice"}}
It is giving the following error:
ERROR WorkerSinkTask{id=jdbc-sink-connector1-0} Task threw an uncaught and unrecoverable exception. Task is being killed and will not recover until manually restarted. Error: 1 (org.apache.kafka.connect.runtime.WorkerSinkTask:607)
java.lang.ArrayIndexOutOfBoundsException: 1
ERROR WorkerSinkTask{id=jdbc-sink-connector1-0} Task threw an uncaught and unrecoverable exception. Task is being killed and will not recover until manually restarted (org.apache.kafka.connect.runtime.WorkerTask:184)
Now according to my understanding I think there is some problem in my JSON in the way I am giving data to the producer but cannot seem to figure what it is?