When i click "Build All" in Admin panel

I got the following message

Building Pages

Pages built on 21-Apr-1999 at 00:36:29
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Backing up database . . .
Backing up links, category and email database (File::Copy) ...

CGI ERROR
==========================================
Error Message : Unable to copy links backup. Reason: No such file or directory
Script Location : /export/home/v11/yyho/cgi-bin/search/1910/nph-build.cgi
Perl Version : 5.00502

Any i can give me a hand? Thanks!

This has been discussed in a number of threads. I recommend you do a search for the words "backup permission denied" and use the whole word search. Perhaps you can resolve your problem by reading one of the threads about it.