uncaught exception: Trying to get property of non-object (errno: 8) in /home/letitiab/public_html/lib/site/Work.class.php at line #48Trying to get property of non-object

in file: /home/letitiab/public_html/lib/site/Work.class.php line 48
#0 /home/letitiab/public_html/lib/site/Work.class.php(48): _hx_error_handler(8, 'Trying to get p...', '/home/letitiab/...', 48, Array) #1 /home/letitiab/public_html/lib/poko/Request.class.php(116): site_Work->main() #2 /home/letitiab/public_html/lib/poko/Application.class.php(65): poko_Request->render() #3 /home/letitiab/public_html/lib/Main.class.php(63): poko_Application->execute() #4 /home/letitiab/public_html/lib/Main.class.php(19): Main::execute() #5 /home/letitiab/public_html/index.php(9): Main::main() #6 {main}