Transient Magnetic Simulation of a PMSM doesn't get solved

Hello,

I'm currently analyzing a PMSM in the transient magnetic application mode. So far the geometry and the physics seem fine (the physics check gives me just a warning about "Loss properties suitable only for laminated regions". Apart from that everything works. The solving process also starts but in the second solving step, for time and also for example changing the rotor position, the process stops and gives me the following error report:

OR_R_AFFIT => No entity OR_PAR_{ENT}_I exists

OCRCAS   => Number RB.F3D.OR_PAR_ICCG_I(0) out of bounds

OCRCAS   => CASE getting aborted

OR_R_AFFIT => failed

BPR_BRSYST => failed

Solution of linear system by SICCG impossible

The solving process has probably not correctly converged

Does anyone know what that means and maybe can help me?

Thanks in advance