Thanks a lot, Al Doman.
Index is OK, I made reindex myself and that was first thing, came to my mind.
As for saving alias, yes, the code was dirty conserning it.
I just tested as you adviced, the code failed, but the mistake message was didifferent, variable _hzxrt43 was not found ( I never did such variables) . Old fake fixing method still works. I tried don't use array and change it into query incide function and mistake dissapeared. I think, your idea was near to true.
Vladimir