I get this error message when I click on validate :

CGI ERROR
==========================================
Error Message : unable to open validation file: p:/www/mywebsite.com/cgi-shl/annuaire/admin/data/validate.db. Reason:
No such file or directory

validate.db exists on my server and it's not an empty file.
I'm running links on Apache/Windows and everything has been working fine for more than a year until today.
What's wrong ?