If phpCMS should display the result of a fulltext search and it can't find the fulltext database, it outputs a php errormessage:
Warning: file(/var/www/foo/bar/htdocs/data/data.db) [function.file]: failed to open stream: No such file or directory in /var/www/foo/bar/htdocs/parser/include/class.parser_search_phpcms.php on line 232
Reason: obviously there is no check on file existance done, before phpCMS tries to open the fulltext database.