J'ai le message d'erreur suivant pour un script d optim (en pj).

2017-08-18 13:09:17,895  INFO [pool-3-thread-9] (EntitySemanticsDecorator.java:136) decorate - Fallback use string representation because i can't decorate (String->Entity): fr.ifremer.isisfish.entities.Strategy#1499957804648#0.89950503610871:Bol_ESP
java.lang.NullPointerException: null
    at fr.ifremer.isisfish.util.EntitySemanticsDecorator$EntityTxProvider.findById(EntitySemanticsDecorator.java:64) ~[isis-fish-4.4.1.0-rc-1.jar:?]
    at fr.ifremer.isisfish.util.EntitySemanticsDecorator.decorate(EntitySemanticsDecorator.java:134) [isis-fish-4.4.1.0-rc-1.jar:?]
    at fr.ifremer.isisfish.util.EntitySemanticsDecorator.decorate(EntitySemanticsDecorator.java:45) [isis-fish-4.4.1.0-rc-1.jar:?]
    at org.nuiton.math.matrix.MatrixSemanticsDecorator$SemanticsDecoratorMatrixIterator.getSemanticsCoordinates(MatrixSemanticsDecorator.java:621) [nuiton-matrix-2.5.2.jar:2.5.2]
    at optimizations.DichotomyMultiSpecies.calculFonctionObjectif(DichotomyMultiSpecies.java:551) [isis-build/:?]
    at optimizations.DichotomyMultiSpecies.endSimulation(DichotomyMultiSpecies.java:283) [isis-build/:?]
    at fr.ifremer.isisfish.simulator.launcher.OptimizationPrepareJob.run(OptimizationPrepareJob.java:161) [isis-fish-4.4.1.0-rc-1.jar:?]
    at fr.ifremer.isisfish.simulator.launcher.SimulationJob.run(SimulationJob.java:269) [isis-fish-4.4.1.0-rc-1.jar:?]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_131]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_131]
    at java.lang.Thread.run(Thread.java:748) [?:1.8.0_131]