[wyfindlut]

Hi,
im trying to do a simulation of a pump by using pimpleDyMFoam,but i meet an error,showing:

Starting time loop

Courant Number mean: 4.45797e-08 max: 1.80412e-05
deltaT = 1.17647e-05
Time = 1.17647e-05

AMI: Creating addressing and weights between 204 source faces and 1322 target faces
AMI: Patch source sum(weights) min/max/average = 0.999999, 1, 1
AMI: Patch target sum(weights) min/max/average = 0.458589, 1, 0.977095
AMI: Creating addressing and weights between 1881 source faces and 2227 target faces
AMI: Patch source sum(weights) min/max/average = 0.999629, 1.00108, 0.999997
AMI: Patch target sum(weights) min/max/average = 0, 1.00046, 0.563596
PIMPLE: iteration 1
smoothSolver: Solving for Ux, Initial residual = 1, Final residual = 1.43556e-07, No Iterations 1
smoothSolver: Solving for Uy, Initial residual = 1, Final residual = 1.27176e-07, No Iterations 1
smoothSolver: Solving for Uz, Initial residual = 1, Final residual = 1.20574e-10, No Iterations 1
#0 Foam::error:rintStack(Foam::Ostream&) at ??:?
#1 Foam::sigFpe::sigHandler(int) at ??:?
#2 ? in "/lib/x86_64-linux-gnu/libc.so.6"
#3 Foam::divide(Foam::Field<double>&, double const&, Foam::UList<double> const&) at ??:?
#4 Foam::tmp<Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh> > Foam:perator/<Foam::fvPatchField, Foam::volMesh>(Foam::dimensioned<double> const&, Foam::tmp<Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh> > const&) at ??:?
#5 ? at ??:?
#6 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6"
#7 ? at ??:?
Floating point exception (core dumped)

im an openfoam beginner,anyone knows please please please please please help me.please spare some time check my file.
Thanks.