Internal error (../tri_mesh_I.h:109)

Hi Mschramm,

In addition to our last conversation please see the attached a new full input script with mesh, the error as shown below:

3107000 98 1.1900136e-15 8.827784e-16 1.1900136e-15 0.000216
3108000 98 1.0896776e-15 1.186896e-15 1.0896776e-15 0.000216
3109000 98 1.8153632e-15 1.4420637e-15 1.8153632e-15 0.000216
3110000 98 1.802467e-15 1.5848981e-15 1.802467e-15 0.000216
3111000 98 1.7403302e-15 1.5772403e-15 1.7403302e-15 0.000216
ERROR on proc 5: Internal error (../tri_mesh_I.h:109)
# mpiexec: finished at Wed 11 Dec 10:47:54 GMT 2019

please suggest if anything wrong with the code.