Hello,
  
 I can't solve the problem 3d model
 Model is synchronous generator. 
 Analysis is set to transient magnetic 3d
 I check geometry, mesh , physics .. but there i no error
 But, whenever I start to solve problem, Flux gives:
 Message : 
 executeAlgo_c : Execution failed.
 Failed execution
 Non managed error which has stopped solving process
  
 Advanced : 
 MXQSPETSC => PETSc solver call failed
 MXQSPETSC => Linear Solving with PETSc failed
 MXQSLI_1 => Solving process of linear system is aborted
 PBC3VP_2 => Newton-Raphson process is aborted
 PBC2VP   => Gauss-Seidel process is aborted
 PBC1VP   => Solving process is aborted
 PBCVP0   => failed
 PB2RGS   => Failed
 PB1RGS   => Failed
 PBCIR2_1 => Failed
 PBCDV1_1 => Failed
 PBCDV0   => Failed
 PBCPEI   => Failed
 PBEAVR   => failed
 PB_FNUM1_2 => Problem while evaluating. Unable to solve the project.
 PBEPVD_4 => Failed
 PBEETA_3 => failed
 PBCEVL_4 => failed
 PBCEVL_3 => Failed
 PBERES_3 => failed
 FL5RE4   => Command not executed correctly
 FL5ERS   => failed
 FL5ERS_1 => failed
 executeAlgo_c => failed
 stdcom.error.SoftwareFortranException: executeAlgo_c : Execution failed.
 Failed execution
 Non managed error which has stopped solving process
     at cad.core.common.error.ErrorManager.createFortranException(ErrorManager.java:174)
     at cad.flux.kernel.dbmanager.FGCProjectDbWrapper.executeAlgo(Na tive Method)
     at cad.flux.kernel.dbmanager.FGCProjectDbAdapter.executeAlgo(FGCProjectDbAdapter.java:932)
     at cad.flux.kernel.dbmanager.FGCDbManager.executeAlgo(FGCDbManager.java:151)
     at cad.flux.kernel.FGSupervisor.executeNativeCommand(FGSupervisor.java:2249)
     at cad.flux.kernel.actions.implementation.algo.project.KSolveScenarioAction.doAction(KSolveScenarioAction.java:83)
     at cad.core.common.dynamic.actions.UIActionManager.postAction(UIActionManager.java:147)
     at cad.core.kernel.KernelCommon.postAction(KernelCommon.java:347)
     at cad.core.kernel.Supervisor.executeJavaCommand(Supervisor.java:2933)
     at cad.core.kernel.Supervisor.executeCommand(Supervisor.java:2111)
     at cad.core.kernel.Supervisor.executeMethod(Supervisor.java:2230)
     at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
     at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
     at java.base/java.lang.reflect.Method.invoke(Unknown Source)
     at org.python.core.PyReflectedFunction.__call__(PyReflectedFunction.java:190)
     at org.python.core.PyReflectedFunction.__call__(PyReflectedFunction.java:208)
     at org.python.core.PyObject.__call__(PyObject.java:523)
     at org.python.core.PyObject.__call__(PyObject.java:528)
     at org.python.core.PyMethod.__call__(PyMethod.java:171)
     at pydb$py.executeMethod$212(pydb.py:1730)
     at pydb$py.call_function(pydb.py)
     at org.python.core.PyTableCode.call(PyTableCode.java:173)
     at org.python.core.PyBaseCode.call(PyBaseCode.java:168)
     at org.python.core.PyFunction.__call__(PyFunction.java:437)
     at org.python.core.PyMethod.__call__(PyMethod.java:156)
     at pydb$py.__call__$179(pydb.py:1501)
     at pydb$py.call_function(pydb.py)
     at org.python.core.PyTableCode.call(PyTableCode.java:173)
     at org.python.core.PyBaseCode.call(PyBaseCode.java:306)
     at org.python.core.PyBaseCode.call(PyBaseCode.java:197)
     at org.python.core.PyFunction.__call__(PyFunction.java:485)
     at org.python.core.PyMethod.instancemethod___call__(PyMethod.java:237)
     at org.python.core.PyMethod.__call__(PyMethod.java:228)
     at org.python.core.PyMethod.__call__(PyMethod.java:223)
     at org.python.core.PyObject.invoke(PyObject.java:3636)
     at org.python.core.PyInstance.instance___call__(PyInstance.java:377)
     at org.python.core.PyInstance.__call__(PyInstance.java:372)
     at org.python.core.PyObject.__call__(PyObject.java:411)
     at org.python.pycode._pyx7.f$0(<input>:1)
     at org.python.pycode._pyx7.call_function(<input>)
     at org.python.core.PyTableCode.call(PyTableCode.java:173)
     at org.python.core.PyCode.call(PyCode.java:18)
     at org.python.core.Py.runCode(Py.java:1698)
     at org.python.core.Py.exec(Py.java:1742)
     at org.python.util.PythonInterpreter.exec(PythonInterpreter.java:277)
     at cad.core.kernel.components.PythonWrapper.runCode(PythonWrapper.java:655)
     at cad.core.kernel.components.PythonWrapper.runsource(PythonWrapper.java:650)
     at cad.core.kernel.components.PythonWrapper.runsource(PythonWrapper.java:625)
     at cad.core.kernel.components.PythonWrapper.runsource(PythonWrapper.java:620)
     at cad.core.kernel.components.PythonWrapper.execute(PythonWrapper.java:665)
     at cad.core.kernel.components.PythonWrapper.executeFunction(PythonWrapper.java:733)
     at cad.core.kernel.encoder.CommandServerRequestsInputPlug.executeCommand(CommandServerRequestsInputPlug.java:79)
     at stdcom.protocole.commandserverrequests.CommandServerRequestsRouter.executeCommand(CommandServerRequestsRouter.java:70)
     at stdcom.protocole.commandserverrequests.CommandServerRequestsOutputPlug.executeCommand(CommandServerRequestsOutputPlug.java:111)
     at cad.core.frontal.decoder.FrontalDecoder.executeCommand(FrontalDecoder.java:694)
     at cad.core.frontal.actions.implementation.GeneralAction.executeBox(GeneralAction.java:286)
     at cad.flux.frontal.actions.implementation.algo.project.FAbstractSaveAsAction.executeBox(FAbstractSaveAsAction.java:93)
     at cad.core.frontal.actions.implementation.GeneralAction.postAct(GeneralAction.java:254)
     at cad.core.frontal.actions.implementation.GeneralAction.interpret(GeneralAction.java:315)
     at cad.core.frontal.components.box.frontaldialog.FrontalDescriptorDialogBox.internalRun(FrontalDescriptorDialogBox.java:296)
     at cad.core.frontal.frontalthread.WorkerThread.executeImplementer(WorkerThread.java:226)
     at cad.core.frontal.frontalthread.WorkerThread.run(WorkerThread.java:274)
  
 what should i do?