I am trying to model Bulk-hetero junction solar cell using two physics module - Electromagnetism and semiconductor. while running the semiconductor module I am getting this error.

I have already checked my Boundary conditions.

Undefined value found.

- Detail: Undefined value found in the equation residual vector.

There are 188 degrees of freedom giving NaN/Inf in the vector for the variable comp1.Ne.

at coordinates: (-2.47032e-005,1.42627e-007), (-2.47019e-005,1.61237e-007), (-2.2932e-005,2.33333e-007), (-2.29348e-005,2.61008e-007), (-2.26355e-005,2.33331e-007), ...

There are 2357 degrees of freedom giving NaN/Inf in the vector for the variable comp1.Ph.

at coordinates: (-2.49918e-005,1.16766e-007), (-2.49776e-005,1.08352e-007), (-2.49918e-005,1.33433e-007), (-2.49351e-005,1.08365e-007), (-2.4956e-005,1.16717e-007), ...