| ERROR | Theme index is required for CTXCAT about queries |
| CAUSE | There is no theme index, but the catsearch query contains about clause. You must create a theme index before using ABOUT query against CTXCAT index |
| ACTION | create theme index |
| ERROR | Theme index is required for CTXCAT about queries |
| CAUSE | There is no theme index, but the catsearch query contains about clause. You must create a theme index before using ABOUT query against CTXCAT index |
| ACTION | create theme index |