Unable to retrieve works.

message	DB Error: invalid number
debug	SELECT prefix, first_name, middle_name, last_name, honours,dates,year_fl,year_died,year_born,year_died,biography, introduction, bibliography, solo_exhibitions, group_exhibitions FROM artists WHERE (artist_id='function.require-once') [nativecode=ERROR: invalid input syntax for integer: "function.require-once"]
string	[db_error: message="DB Error: invalid number" code=-11 mode=return level=notice prefix="" info="SELECT prefix, first_name, middle_name, last_name, honours,dates,year_fl,year_died,year_born,year_died,biography, introduction, bibliography, solo_exhibitions, group_exhibitions FROM artists WHERE (artist_id='function.require-once') [nativecode=ERROR: invalid input syntax for integer: "function.require-once"]"]

Warning: require_once(/home/web/duncanmiller/www2/footer.php) [function.require-once]: failed to open stream: No such file or directory in /home/web/duncanmiller/www2/include.php on line 34

Fatal error: require_once() [function.require]: Failed opening required '/home/web/duncanmiller/www2/footer.php' (include_path='/usr/local/share/pear') in /home/web/duncanmiller/www2/include.php on line 34