@ahlamosama Read the error message and do what it says to do...check your environment for insufficient supports, or excessive loads or wrong material properties.Does this model have nonlinear contact?https://forum.ansys.com/discussion/comment/112668#Comment_112668

yes , It is the nonlinear .nI try many trier but I dont know wha i solve this problem ,please can you check the model and tell me what shoud i do ,please .nhttps://www.dropbox.com/s/ok1d7162srocu5z/isolator%204.mechdat?dl=0n