DBdoctor出错，Error was fixed，求救！

做了个MODULE，老贴不进来，提示：Cannot modify element; the object or a parent has the FIXED property。换了一个能贴其它MODULE的板也是这个提示，所以认为MODULE有问题，FIXED property能UNFIXED的都解了，但结果DBdoctor还是出错，如下，请各位大虾帮忙看下什么原因，怎么解决。3Q！

ERROR IN PAD STACK name = NULLPAD
  WARNING(SPMHDB-46): Illegal null pad.
   Error was fixed.
Number of Xnets before update: 94        after update: 73
Number of Diff Pairs before update: 72   after update: 65
Regenerating DRC
  Original DRC errors:   327
  Updated DRC errors:    756
  DRC elapsed time:      00:00:03
0 warnings, 1 errors detected, 1 errors  fixed.

已解决，谢谢各位。“Illegal null pad”删除多余PAD就可以了。WARNING也不能忽略呀，不能光看 Error 。

请问最后怎么解决?
ERROR IN PAD STACK name = PAD119
  WARNING(SPMHDB-46): Illegal null pad.
   Error was fixed.
ERROR IN PAD STACK name = PAD118
  WARNING(SPMHDB-46): Illegal null pad.
   Error was fixed.
Number of Xnets before update: 0        after update: 0
Number of Diff Pairs before update: 14   after update: 14
Regenerating DRC
  Original DRC errors:   11
  Updated DRC errors:    11
  DRC elapsed time:      00:00:01
0 warnings, 2 errors detected, 2 errors  fixed.