com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException
Cannot add or update a child row: a foreign key constraint fails (`pim`.`pim_feature_groups_AUD`, CONSTRAINT `FK_d82a6ca0ceda4dd5a2f2f49a41a` FOREIGN KEY (`REVEND`) REFERENCES `custom_revisions` (`id`))

java.lang.reflect.Constructor.newInstance(Constructor.java:532) 
 com.mysql.jdbc.Util.handleNewInstance(Util.java:411) 
 com.mysql.jdbc.Util.getInstance(Util.java:386) 
 com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1041) 
 com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4120) 
 com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4052) 
 com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2503) 
 com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2664) 
 com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2815) 
 com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2155) 
 com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2458) 
 com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2375) 
 com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2359) 
 org.apache.commons.dbcp.DelegatingPreparedStatement.executeUpdate(DelegatingPreparedStatement.java:105) 
 org.apache.commons.dbcp.DelegatingPreparedStatement.executeUpdate(DelegatingPreparedStatement.java:105) 
 org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:133) 
 org.hibernate.envers.strategy.ValidityAuditStrategy$1.execute(ValidityAuditStrategy.java:200) 
 org.hibernate.envers.strategy.ValidityAuditStrategy$1.execute(ValidityAuditStrategy.java:162) 
 org.hibernate.jdbc.WorkExecutor.executeReturningWork(WorkExecutor.java:72) 
 org.hibernate.internal.SessionImpl$3.accept(SessionImpl.java:1993) 
 org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl.coordinateWork(JdbcCoordinatorImpl.java:284) 
 org.hibernate.internal.SessionImpl.doWork(SessionImpl.java:2000) 
 org.hibernate.internal.SessionImpl.doReturningWork(SessionImpl.java:1996) 
 org.hibernate.envers.strategy.ValidityAuditStrategy.perform(ValidityAuditStrategy.java:161) 
 org.hibernate.envers.synchronization.work.AbstractAuditWorkUnit.perform(AbstractAuditWorkUnit.java:76) 
 org.hibernate.envers.synchronization.AuditProcess.executeInSession(AuditProcess.java:116) 
 org.hibernate.envers.synchronization.AuditProcess.doBeforeTransactionCompletion(AuditProcess.java:155) 
 org.hibernate.envers.synchronization.AuditProcessManager$1.doBeforeTransactionCompletion(AuditProcessManager.java:62) 
 org.hibernate.engine.spi.ActionQueue$BeforeTransactionCompletionProcessQueue.beforeTransactionCompletion(ActionQueue.java:666) 
 org.hibernate.engine.spi.ActionQueue.beforeTransactionCompletion(ActionQueue.java:309) 
 org.hibernate.internal.SessionImpl.beforeTransactionCompletion(SessionImpl.java:613) 
 org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.beforeTransactionCommit(JdbcTransaction.java:105) 
 org.hibernate.engine.transaction.spi.AbstractTransactionImpl.commit(AbstractTransactionImpl.java:175)