I can change the settings, but I can't do anything else. I have tried to add a new item to the database, but always get an error.

Here are the errors from the error log:
Use of uninitialized value in string eq at coupons.lib line 157., referer
: http://www.rossini.com/cgi-bin/ppadmin.cgi?action=newitems
Use of uninitialized value in string eq at coupons.lib line 157., referer
: http://www.rossini.com/cgi-bin/ppadmin.cgi?action=newitems
Use of uninitialized value in array element at /home/rmsinter/public_html
/cgi-bin/ppadmin.cgi line 2581., referer: http://www.rossini.com/cgi-bin/ppadmin.cgi?action=newitems
Use of uninitialized value in scalar chomp at /home/rmsinter/public_html/
cgi-bin/ppadmin.cgi line 2581., referer: http://www.rossini.com/cgi-bin/ppadmin.cgi?action=newitems
Use of uninitialized value in split at /home/rmsinter/public_html/cgi-bin
/ppadmin.cgi line 2582., referer: http://www.rossini.com/cgi-bin/ppadmin.cgi?action=newitems
Use of uninitialized value in addition (+) at /home/rmsinter/public_html/
cgi-bin/ppadmin.cgi line 2583., referer: http://www.rossini.com/cgi-bin/ppadmin.cgi?action=newitems
Use of uninitialized value in string eq at /home/rmsinter/public_html/cgi
-bin/ppadmin.cgi line 2589., referer: http://www.rossini.com/cgi-bin/ppadmin.cgi?action=newitems
Use of uninitialized value in concatenation (.) or string at /home/rmsint
er/public_html/cgi-bin/ppadmin.cgi line 2603., referer: http://www.rossini.com/cgi-bin/ppadmin.cgi?action=newitems
Use of uninitialized value in string eq at /home/rmsinter/public_html/cgi
-bin/ppadmin.cgi line 3448., referer: http://www.rossini.com/cgi-bin/ppadmin.cgi?action=newitems
Use of uninitialized value in split at /home/rmsinter/public_html/cgi-bin
/ppadmin.cgi line 3462., referer: http://www.rossini.com/cgi-bin/ppadmin.cgi?action=newitems
Use of uninitialized value in string eq at /home/rmsinter/public_html/cgi
-bin/ppadmin.cgi line 3470., referer: http://www.rossini.com/cgi-bin/ppadmin.cgi?action=newitems
Use of uninitialized value in string eq at /home/rmsinter/public_html/cgi
-bin/ppadmin.cgi line 3470., referer: http://www.rossini.com/cgi-bin/ppadmin.cgi?action=newitems
(2)No such file or directory: exec of '/home/rmsinter/public_html/cgi-bin
/ppaddit.cgi' failed, referer: http://www.rossini.com/cgi-bin/ppadmin.cgi
Premature end of script headers: ppaddit.cgi, referer: http://www.rossini
.com/cgi-bin/ppadmin.cgi

Help???

Thanks.

Please try to remove "imagemagick" line from ppaddit.cgi file:

Open ppaddit.cgi file in text editor, locate this line:
if ($imagemagick eq 1){use Image::Magick;}
and delete it. Save and re-upload ppaddit.cgi file via FTP. CHMOD as 755.

Also, see http://www.shoppingcart.org/paypalhelp/DCForumID1/42.html#4

If this does not work, please e-mail FTP access information to our support and reference your order ID number or your name. We will fix the problem.

Regards,
Support @ ShoppingCart.org