[23/06/17 10:05:58:820 EST] ERROR business.PublisherAPIImpl: Error Publishing Bundle: ERROR: duplicate key value violates unique constraint "unique_struct_vel_var_name"
  Detail: Key (velocity_var_name)=(Comments) already exists.
com.dotcms.publishing.DotPublishingException: ERROR: duplicate key value violates unique constraint "unique_struct_vel_var_name"
  Detail: Key (velocity_var_name)=(Comments) already exists.
	at com.dotcms.enterprise.publishing.remote.handler.ContentTypeHandler.a(SourceFile:197) ~[ee-4.2.0-SNAPSHOT.jar:?]
	at com.dotcms.enterprise.publishing.remote.handler.ContentTypeHandler.handle(SourceFile:74) ~[ee-4.2.0-SNAPSHOT.jar:?]
	at com.dotcms.publisher.receiver.BundlePublisher.process(BundlePublisher.java:201) [dotcms_4.2.0_4a47fe5.jar:?]
	at com.dotcms.rest.PublishThread.run(PublishThread.java:41) [dotcms_4.2.0_4a47fe5.jar:?]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_92]
Caused by: com.dotmarketing.exception.DotDataException: ERROR: duplicate key value violates unique constraint "unique_struct_vel_var_name"
  Detail: Key (velocity_var_name)=(Comments) already exists.
	at com.dotmarketing.db.LocalTransaction.wrapReturn(LocalTransaction.java:47) ~[dotcms_4.2.0_4a47fe5.jar:?]
	at com.dotcms.contenttype.business.ContentTypeAPIImpl.save(ContentTypeAPIImpl.java:412) ~[dotcms_4.2.0_4a47fe5.jar:?]
	at com.dotcms.contenttype.business.ContentTypeAPIImpl.save(ContentTypeAPIImpl.java:187) ~[dotcms_4.2.0_4a47fe5.jar:?]
	at com.dotcms.enterprise.publishing.remote.handler.ContentTypeHandler.a(SourceFile:125) ~[ee-4.2.0-SNAPSHOT.jar:?]
	... 4 more
Caused by: org.postgresql.util.PSQLException: ERROR: duplicate key value violates unique constraint "unique_struct_vel_var_name"
  Detail: Key (velocity_var_name)=(Comments) already exists.
	at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2102) ~[postgresql-9.0-801.jdbc3.jar:?]
	at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1835) ~[postgresql-9.0-801.jdbc3.jar:?]
	at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:257) ~[postgresql-9.0-801.jdbc3.jar:?]
	at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:500) ~[postgresql-9.0-801.jdbc3.jar:?]
	at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:388) ~[postgresql-9.0-801.jdbc3.jar:?]
	at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:381) ~[postgresql-9.0-801.jdbc3.jar:?]
	at org.apache.tomcat.dbcp.dbcp2.DelegatingPreparedStatement.execute(DelegatingPreparedStatement.java:197) ~[tomcat-dbcp.jar:8.0.18]
	at org.apache.tomcat.dbcp.dbcp2.DelegatingPreparedStatement.execute(DelegatingPreparedStatement.java:197) ~[tomcat-dbcp.jar:8.0.18]
	at com.dotmarketing.common.db.DotConnect.executeQuery(DotConnect.java:595) ~[dotcms_4.2.0_4a47fe5.jar:?]
	at com.dotmarketing.common.db.DotConnect.executeQuery(DotConnect.java:511) ~[dotcms_4.2.0_4a47fe5.jar:?]
	at com.dotmarketing.common.db.DotConnect.loadResult(DotConnect.java:240) ~[dotcms_4.2.0_4a47fe5.jar:?]
	at com.dotcms.contenttype.business.ContentTypeFactoryImpl.dbInsert(ContentTypeFactoryImpl.java:449) ~[dotcms_4.2.0_4a47fe5.jar:?]
	at com.dotcms.contenttype.business.ContentTypeFactoryImpl.dbSaveUpdate(ContentTypeFactoryImpl.java:347) ~[dotcms_4.2.0_4a47fe5.jar:?]
	at com.dotcms.contenttype.business.ContentTypeFactoryImpl.lambda$save$13(ContentTypeFactoryImpl.java:190) ~[dotcms_4.2.0_4a47fe5.jar:?]
	at com.dotmarketing.db.LocalTransaction.wrapReturn(LocalTransaction.java:34) ~[dotcms_4.2.0_4a47fe5.jar:?]
	at com.dotcms.contenttype.business.ContentTypeFactoryImpl.save(ContentTypeFactoryImpl.java:189) ~[dotcms_4.2.0_4a47fe5.jar:?]
	at com.dotcms.contenttype.business.ContentTypeAPIImpl.lambda$save$1(ContentTypeAPIImpl.java:442) ~[dotcms_4.2.0_4a47fe5.jar:?]
	at com.dotmarketing.db.LocalTransaction.wrapReturn(LocalTransaction.java:34) ~[dotcms_4.2.0_4a47fe5.jar:?]
	at com.dotcms.contenttype.business.ContentTypeAPIImpl.save(ContentTypeAPIImpl.java:412) ~[dotcms_4.2.0_4a47fe5.jar:?]
	at com.dotcms.contenttype.business.ContentTypeAPIImpl.save(ContentTypeAPIImpl.java:187) ~[dotcms_4.2.0_4a47fe5.jar:?]
	at com.dotcms.enterprise.publishing.remote.handler.ContentTypeHandler.a(SourceFile:125) ~[ee-4.2.0-SNAPSHOT.jar:?]
	... 4 more
[23/06/17 10:05:58:828 EST] ERROR lang.String: Error Publishing: com.dotcms.publishing.DotPublishingException: ERROR: duplicate key value violates unique constraint "unique_struct_vel_var_name"
  Detail: Key (velocity_var_name)=(Comments) already exists.