MySQL connector stops processing with an exception

[2019-08-22 05:51:32,432] ERROR Error during binlog processing. Last offset stored = {ts_sec=1566442824, file=mysql-bin-changelog.009184, pos=72227478, server_id=241308800, event=1}, binlog reader near position = mysql-bin-changelog.009184/72248246 (io.debezium.connector.mysql.BinlogReader)
[2019-08-22 05:51:32,432] ERROR Failed due to error: Error processing binlog event (io.debezium.connector.mysql.BinlogReader)
org.apache.kafka.connect.errors.ConnectException: Invalid default value
	at io.debezium.connector.mysql.AbstractReader.wrap(AbstractReader.java:200)
	at io.debezium.connector.mysql.AbstractReader.failed(AbstractReader.java:178)
	at io.debezium.connector.mysql.BinlogReader.handleEvent(BinlogReader.java:452)
	at com.github.shyiko.mysql.binlog.BinaryLogClient.notifyEventListeners(BinaryLogClient.java:1055)
	at com.github.shyiko.mysql.binlog.BinaryLogClient.listenForEventPackets(BinaryLogClient.java:913)
	at com.github.shyiko.mysql.binlog.BinaryLogClient.connect(BinaryLogClient.java:559)
	at com.github.shyiko.mysql.binlog.BinaryLogClient$7.run(BinaryLogClient.java:793)
	at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.kafka.connect.errors.SchemaBuilderException: Invalid default value
	at org.apache.kafka.connect.data.SchemaBuilder.defaultValue(SchemaBuilder.java:131)
	at io.debezium.relational.TableSchemaBuilder.addField(TableSchemaBuilder.java:307)
	at io.debezium.relational.TableSchemaBuilder.lambda$create$0(TableSchemaBuilder.java:103)
	at java.util.ArrayList.forEach(ArrayList.java:1257)
	at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080)
	at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080)
	at io.debezium.relational.TableSchemaBuilder.create(TableSchemaBuilder.java:94)
	at io.debezium.relational.RelationalDatabaseSchema.buildAndRegisterSchema(RelationalDatabaseSchema.java:112)
	at io.debezium.connector.mysql.MySqlSchema.lambda$applyDdl$3(MySqlSchema.java:361)
	at java.lang.Iterable.forEach(Iterable.java:75)
	at io.debezium.connector.mysql.MySqlSchema.applyDdl(MySqlSchema.java:355)
	at io.debezium.connector.mysql.BinlogReader.handleQueryEvent(BinlogReader.java:637)
	at io.debezium.connector.mysql.BinlogReader.handleEvent(BinlogReader.java:436)
	... 5 more
Caused by: org.apache.kafka.connect.errors.DataException: Invalid value: null used for required field: "null", schema type: STRING
	at org.apache.kafka.connect.data.ConnectSchema.validateValue(ConnectSchema.java:220)
	at org.apache.kafka.connect.data.ConnectSchema.validateValue(ConnectSchema.java:213)
	at org.apache.kafka.connect.data.SchemaBuilder.defaultValue(SchemaBuilder.java:129)
	... 17 more
[2019-08-22 05:51:32,433] INFO Error processing binlog event, and propagating to Kafka Connect so it stops this connector. Future binlog events read before connector is shutdown will be ignored. (io.debezium.connector.mysql.BinlogReader)
[2019-08-22 05:51:32,713] INFO WorkerSourceTask{id=mysql-source-connector-0} Committing offsets (org.apache.kafka.connect.runtime.WorkerSourceTask)
[2019-08-22 05:51:32,713] INFO WorkerSourceTask{id=mysql-source-connector-0} flushing 0 outstanding messages for offset commit (org.apache.kafka.connect.runtime.WorkerSourceTask)
[2019-08-22 05:51:32,717] INFO WorkerSourceTask{id=mysql-source-connector-0} Finished commitOffsets successfully in 4 ms (org.apache.kafka.connect.runtime.WorkerSourceTask)
[2019-08-22 05:51:32,717] ERROR WorkerSourceTask{id=mysql-source-connector-0} Task threw an uncaught and unrecoverable exception (org.apache.kafka.connect.runtime.WorkerTask)
org.apache.kafka.connect.errors.ConnectException: Invalid default value
	at io.debezium.connector.mysql.AbstractReader.wrap(AbstractReader.java:200)
	at io.debezium.connector.mysql.AbstractReader.failed(AbstractReader.java:178)
	at io.debezium.connector.mysql.BinlogReader.handleEvent(BinlogReader.java:452)
	at com.github.shyiko.mysql.binlog.BinaryLogClient.notifyEventListeners(BinaryLogClient.java:1055)
	at com.github.shyiko.mysql.binlog.BinaryLogClient.listenForEventPackets(BinaryLogClient.java:913)
	at com.github.shyiko.mysql.binlog.BinaryLogClient.connect(BinaryLogClient.java:559)
	at com.github.shyiko.mysql.binlog.BinaryLogClient$7.run(BinaryLogClient.java:793)
	at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.kafka.connect.errors.SchemaBuilderException: Invalid default value
	at org.apache.kafka.connect.data.SchemaBuilder.defaultValue(SchemaBuilder.java:131)
	at io.debezium.relational.TableSchemaBuilder.addField(TableSchemaBuilder.java:307)
	at io.debezium.relational.TableSchemaBuilder.lambda$create$0(TableSchemaBuilder.java:103)
	at java.util.ArrayList.forEach(ArrayList.java:1257)
	at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080)
	at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080)
	at io.debezium.relational.TableSchemaBuilder.create(TableSchemaBuilder.java:94)
	at io.debezium.relational.RelationalDatabaseSchema.buildAndRegisterSchema(RelationalDatabaseSchema.java:112)
	at io.debezium.connector.mysql.MySqlSchema.lambda$applyDdl$3(MySqlSchema.java:361)
	at java.lang.Iterable.forEach(Iterable.java:75)
	at io.debezium.connector.mysql.MySqlSchema.applyDdl(MySqlSchema.java:355)
	at io.debezium.connector.mysql.BinlogReader.handleQueryEvent(BinlogReader.java:637)
	at io.debezium.connector.mysql.BinlogReader.handleEvent(BinlogReader.java:436)
	... 5 more
Caused by: org.apache.kafka.connect.errors.DataException: Invalid value: null used for required field: "null", schema type: STRING
	at org.apache.kafka.connect.data.ConnectSchema.validateValue(ConnectSchema.java:220)
	at org.apache.kafka.connect.data.ConnectSchema.validateValue(ConnectSchema.java:213)
	at org.apache.kafka.connect.data.SchemaBuilder.defaultValue(SchemaBuilder.java:129)
	... 17 more
[2019-08-22 05:51:32,717] ERROR WorkerSourceTask{id=mysql-source-connector-0} Task is being killed and will not recover until manually restarted (org.apache.kafka.connect.runtime.WorkerTask)