probably fixed this issue:

[ERROR] [12/06/2013 11:38:11.696]
[simplexPE-akka.actor.default-dispatcher-9] [akka://simplexPE/user/$U]
Unique index or primary key violation: "PRIMARY_KEY_E ON
PUBLIC.XTRANSITION(ID)"; SQL statement:
insert into xtransition ( id,
xprocess_id,                                       contextstatus_id,
processstatus_id,                                       errorcode,
errorcount,                                       valid_from,
valid_to                                     )
values ( ?,                                        ?,
?,                                       ?,     		  			              ?,
?,                                       ?,
?                                     ) [23505-172]
org.h2.jdbc.JdbcSQLException: Unique index or primary key violation:
"PRIMARY_KEY_E ON PUBLIC.XTRANSITION(ID)"; SQL statement:
insert into xtransition ( id,
xprocess_id,                                       contextstatus_id,
processstatus_id,                                       errorcode,
errorcount,                                       valid_from,
valid_to                                     )
values ( ?,                                        ?,
?,                                       ?,     		  			              ?,
?,                                       ?,
?                                     ) [23505-172]
	at org.h2.message.DbException.getJdbcSQLException(DbException.java:329)
	at org.h2.message.DbException.get(DbException.java:169)
	at org.h2.message.DbException.get(DbException.java:146)
	at org.h2.index.BaseIndex.getDuplicateKeyException(BaseIndex.java:83)
	at org.h2.index.PageBtree.find(PageBtree.java:121)
	at org.h2.index.PageBtreeLeaf.addRow(PageBtreeLeaf.java:148)
	at org.h2.index.PageBtreeLeaf.addRowTry(PageBtreeLeaf.java:101)
	at org.h2.index.PageBtreeIndex.addRow(PageBtreeIndex.java:104)
	at org.h2.index.PageBtreeIndex.add(PageBtreeIndex.java:95)
	at org.h2.index.MultiVersionIndex.add(MultiVersionIndex.java:52)
	at org.h2.table.RegularTable.addRow(RegularTable.java:124)
	at org.h2.command.dml.Insert.insertRows(Insert.java:126)
	at org.h2.command.dml.Insert.update(Insert.java:86)
	at org.h2.command.CommandContainer.update(CommandContainer.java:79)
	at org.h2.command.Command.executeUpdate(Command.java:235)
	at
org.h2.jdbc.JdbcPreparedStatement.execute(JdbcPreparedStatement.java:193)
	at
com.jolbox.bonecp.PreparedStatementHandle.execute(PreparedStatementHandle.java:140)
	at anorm.Sql$class.execute(Anorm.scala:465)
	at anorm.SimpleSql.execute(Anorm.scala:372)
	at
models.XTransition$$anonfun$create$1$$anonfun$apply$2.apply(XTransition.scala:148)
	at
models.XTransition$$anonfun$create$1$$anonfun$apply$2.apply(XTransition.scala:117)