My Site Won't Let Me Attach Filez

My site don't except uploads and i can't attach filez to posts does anyone know why here is what i get when i try

PHP Code:

Warning: SAFE MODE Restriction in effect. The script whose uid is 11376 is not allowed to access /tmp/add_attachment_on_edit_post.txt owned by uid 0 in /usr/local/psa/home/vhosts/my site.com/httpdocs/test/admin/functions.php on line 1602

Warning: SAFE MODE Restriction in effect. The script whose uid is 11376 is not allowed to access /tmp/add_attachment_on_edit_post.txt owned by uid 0 in /usr/local/psa/home/vhosts/my site.com/httpdocs/test/admin/functions.php on line 1636

Warning: fopen("/tmp/add_attachment_on_edit_post.txt","rb") - Undefined error: 0 in /usr/local/psa/home/vhosts/my site.com/httpdocs/test/admin/functions.php on line 1636

Warning: Supplied argument is not a valid File-Handle resource in /usr/local/psa/home/vhosts/mysite.com/httpdocs/test/admin/functions.php on line 1637

Warning: Supplied argument is not a valid File-Handle resource in /usr/local/psa/home/vhosts/mysite.com/httpdocs/test/admin/functions.php on line 1638

Warning: SAFE MODE Restriction in effect. The script whose uid is 11376 is not allowed to access /tmp/add_attachment_on_edit_post.txt owned by uid 0 in /usr/local/psa/home/vhosts/my site.com/httpdocs/test/admin/functions.php on line 1639