QSF Portal has exited with an error

Invalid argument supplied for foreach()
Warning [2]:
The error was reported on line 1076 of /home/mudbytes/public_html/func/files.php

Code:
1073             LEFT JOIN %pusers u ON u.user_id=f.file_submitted
1074             WHERE file_id=%d", $fid );
1075
1076         foreach($query as $key => $value)
1077             $$key = $value;
1078
1079         $tree = $this->get_filetree($file_catid,true);


Backtrace:

File: /home/mudbytes/public_html/func/files.php
Line: 1076
Call: See above for details.

File: /home/mudbytes/public_html/func/files.php
Line: 922
Call: files->show_file('4', '')

File: /home/mudbytes/public_html/func/files.php
Line: 131
Call: files->display_categories('8')

File: /home/mudbytes/public_html/index.php
Line: 129
Call: files->execute()