用abaqus和franc3D联合计算裂纹时出现以下报错：
The volume of 11 elements is zero, small, or negative. Check coordinates or node numbering, or modify the mesh seed. In the case of a tetrahedron this error may indicate that all nodes are located very nearly in a plane. The elements have been identified in element set ErrElemVolSmallNegZero.
我只有一个part，用的是四面体网格，没有任何接触。想问问如何解决。