Deleting cases error ARJUNA016102

Hello!

I am trying to delete some cases using the bonita portal using the delete button, but after few minutes I clicked it my cases didn´t delete and is appearing the next message:

500 org.bonitasoft.engine.exception.DeletionException: USERNAME=myUser | org.bonitasoft.engine.transaction.STransactionCommitException.javax.transaction.RollbackException: ARJUNA016102: The transaction is not active! Uid is 0:ffff0a1a0dfb:a1a5:66314193:cae75

How can I fix this?

Thanks!!