ABAQUS复合材料屈曲分析

在进行复材开孔板buckling分析的时候，总是报错，求大神帮忙

The eigenvalues cannot be found. This could be caused due to instabilities in the base state (check for negetive eigenvalues in the general analysis step)

Abaqus/Standard Analysis exited with an error - Please see the  message file for possible error messages if the file exists.