updating boundary conditions...
computing enthalpy
depth averaging WaterfractionDrainage
extruding WaterfractionDrainageIntegrated from base...
[11] ??? Error using ==> ./shared/Matrix/MatrixUtils.cpp:455
[11] Matrix3x3Invert error message: Determinant smaller than machine epsilon
[7] ??? Error using ==> ./shared/Matrix/MatrixUtils.cpp:455
[7] Matrix3x3Invert error message: Determinant smaller than machine epsilon
How to correct this error