Sampat Kumar
Ansys Employee

Hi Ayeon, 
We Ansys employees are not allowed to handle any external links or files; maybe someone outside of Ansys would help you with this file.
Your model has converged with your loading and boundary conditions. The solver has automatically added a Weak spring to converge this model.
What type of result do you obtain when you use frictional contact instead of no separation contact?

Regards,
SampatÂ