Simulator error when adding thermal effect

[seb155]

I did run some simple cases with helyxos and simpleFoam solver for a laminar flow everything is working perfectly.

But if I try to add some thermal effect, it is not working anymore.
Even for a really simple case (laminar flow, with a uniform temperature).
As soon as the buoyantBoussinesqSimpleFoam solver is selected I have those errors messages :

Starting time loop

Time = 1

smoothSolver:  Solving for Ux, Initial residual = 0.2169410868, Final residual = 0.01162152451, No Iterations 3
smoothSolver:  Solving for Uy, Initial residual = 0.333764501, Final residual = 0.02089926544, No Iterations 3
smoothSolver:  Solving for Uz, Initial residual = 0.2148274967, Final residual = 0.01149639771, No Iterations 3
#0  Foam::error::printStack(Foam::Ostream&) at ??:?
#1  Foam::sigFpe::sigHandler(int) at ??:?
#2  ? in "/lib/x86_64-linux-gnu/libc.so.6"
#3  Foam::incompressible::alphatJayatillekeWallFunctionFvPatchScalarField::yPlusTherm(double, double) const at ??:?
#4  Foam::incompressible::alphatJayatillekeWallFunctionFvPatchScalarField::updateCoeffs() at ??:?
#5  Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh>::Boundary::evaluate() at ??:?
#6  ? at ??:?
#7  __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6"
#8  ? at ??:?
/home/pyr/OpenFOAM/pyr-4.1/run/PaoloGeremia/tuto_paolo/newCase/solver_parallel.run: line 32: 36956 Floating point exception(core dumped) $SOLVER -case $CASE 2>&1
     36957 Done                    | tee -a $LOG

I'm running:
Ubuntun 16.04.3 LTS x64
Helyx-os v2.4
Openfoam 4.1