Continuity problem for shell type physics

Dear Comsol community,

I am creating a structural model of two plates connected through a frame for which it is important to use only surfaces since the thickness is small and the model needs to have minimum DOFs. The problem I encounter is that the continuity for shell physics can only be defined for edges. Where on the contrary the contact pairs are properly defined . To have a better view I can say that I use asssembly and with a bit of correction the model pairs are recognized. I am uploading the model for the ones who are interested to provide some information how to solve this problem.

                                        Thank you for your time