Notice: Undefined variable:

[juventusir]

Notice: Undefined variable: sourcedir in /home/talarju/public_html/index.php on line 54

Warning: require_once(/QueryString.php) [function.require-once]: failed to open stream: No such file or directory in /home/talarju/public_html/index.php on line 54

Fatal error: require_once() [function.require]: Failed opening required '/QueryString.php' (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/talarju/public_html/index.php on line 54

[commanderkeen]

make sure the file QueryString.php exists

[MrPhil]

You had database problems and a horrible and well known bug in SMF emptied out your Settings.php file. See if you have a Settings_bak.php file that has reasonable-looking stuff in it. If so, copy Settings_bak.php over the empty Settings.php file. Then make Settings.php read-only (e.g., chmod 444). You should be in business again. If you don't have a good Settings_bak.php, or a good backup copy of Settings.php, you'll have to download repair_settings.php and rebuild your Settings.php file.