First of all, I would like to express my gratitude for your contribution to such a useful project. I am currently experiencing some issues with your NormalIntegration module and would appreciate your help.
I want to get the results of obj, but encountered multiple runtime warnings and errors while running the module, mainly related to invalid value calculations and file opening issues. Below are the detailed error messages and the context in which they occurred.

E:\NormalIntegration\data\data_class.py:29: RuntimeWarning: invalid value encountered in sqrt
t = (-b - np.sqrt(b ** 2 - 4 * a * c)) / (2 * a)
E:\NormalIntegration\utils.py:173: RuntimeWarning: invalid value encountered in true_divide
zx = -nx / nz
E:\NormalIntegration\utils.py:174: RuntimeWarning: invalid value encountered in true_divide
zy = -ny / nz
E:\NormalIntegration\utils.py:241: RuntimeWarning: Mean of empty slice
left_forward[..., None]), -1), -1)
E:\NormalIntegration\utils.py:244: RuntimeWarning: Mean of empty slice
bottom_forward[..., None]), -1), -1)
E:\NormalIntegration\data\data_class.py:61: RuntimeWarning: invalid value encountered in true_divide
p = - n[..., 0] / n[..., 2]
E:\NormalIntegration\data\data_class.py:62: RuntimeWarning: invalid value encountered in true_divide
q = - n[..., 1] / n[..., 2]
E:\NormalIntegration\data\data_class.py:103: RuntimeWarning: invalid value encountered in true_divide
p_map = - self.n[..., 0] / self.n[..., 2]
E:\NormalIntegration\data\data_class.py:104: RuntimeWarning: invalid value encountered in true_divide
q_map = - self.n[..., 1] / self.n[..., 2]
E:\NormalIntegration\data\data_class.py:61: RuntimeWarning: invalid value encountered in true_divide
p = - n[..., 0] / n[..., 2]
E:\NormalIntegration\data\data_class.py:62: RuntimeWarning: invalid value encountered in true_divide
q = - n[..., 1] / n[..., 2]
E:\NormalIntegration\data\data_class.py:124: RuntimeWarning: invalid value encountered in true_divide
p_map = - self.n[..., 0] / self.n[..., 2]
E:\NormalIntegration\data\data_class.py:125: RuntimeWarning: invalid value encountered in true_divide
q_map = - self.n[..., 1] / self.n[..., 2]
E:\shapeUp2014_face_quick_version\NormalIntegration\data\data_class.py:61: RuntimeWarning: invalid value encountered in true_divide
p = - n[..., 0] / n[..., 2]
E:\shapeUp2014_face_quick_version\NormalIntegration\data\data_class.py:62: RuntimeWarning: invalid value encountered in true_divide
q = - n[..., 1] / n[..., 2]
E:\NormalIntegration\data\data_sphere.py:20: RuntimeWarning: invalid value encountered in sqrt
z = np.sqrt(1 - XX ** 2 - YY ** 2)
E:\NormalIntegration\data\data_vase.py:31: RuntimeWarning: invalid value encountered in sqrt
z = np.sqrt(py ** 2 - XX ** 2)
running orthographic_five_point_plane_fitting...
running orthographic_four_point_plane_fitting...
running orthographic_poisson...
running orthographic_discrete_functional...
running orthographic_discrete_geometry_processing...
ERROR:root:Error opening PLY file
running orthographic_five_point_plane_fitting...
running orthographic_four_point_plane_fitting...
running orthographic_poisson...
running orthographic_discrete_functional...
running orthographic_discrete_geometry_processing...
ERROR:root:Error opening PLY file
ERROR:root:Error opening PLY file
ERROR:root:Error opening PLY file
ERROR:root:Error opening PLY file
ERROR:root:Error opening PLY file
ERROR:root:Error opening PLY file