Hello Sir/Ma'am, I have been modelling a brick wall using detailed micro modelling approach using Abaqus with the reference of paper published by Antonio Maria D' Altri on topic " A 3D Detailed Micro-Modelling Approach for the In-Plane and Out-Of-Plane Analysis of Masonry Structures". While performing analysis in abaqus, I am getting this error " COHESIVE CONTACT RESPOSE IS COMPUTED AT SLAVE NODE 13 INSTANCE Mortar East-1-lin-1-9 THAT FELL OFF THE MASTER SIDE USING A SEPARATION OF 1.00000E+36.". Please help me regarding this.