abaqus做单轴压缩的弯扭耦合层合板的屈曲，出现的问题？

最后提交作业时，出现中断，然后错误，给的信息时下面的英文，求大神帮帮忙，就差这一点了，谢谢了

The lanczos solver cannot be used for buckling analysis in which a model: (1) is preloaded above the bifurcation (buckling) load, or; (2) has rigid body modes, or (3) is overconstrained or (4) contains hybrid elements or connector elements.