** WARNING 200790 ** Having difficulty averaging the stress for matching element.
The Warp solver is having difficulty calculating results due to poor mesh matching in a particular area of the part.
Try either remeshing the model. If this does not fix the problem click (Mesh > Mesh Diagnostics > Dual Domain Mesh Match Diagnostic), to identify unmatched elements. Then click (Mesh > Mesh Tools > Nodal Tools > Match Nodes) to repair the unmatched elements, manually.