Use of uninitialized value in concatenation (.) or string at /home/script.pl line 48, <STDIN> line 20.

##</code><code>##

$mbody = $dbh->quote($body);
$msubject = $dbh->quote($subject);
my $rv = $dbh->do(qq{INSERT INTO table values (
	"NULL", "ME", "testing", "$from", "$url", "$name", "3", "$category", $msubject, $mbody)}
	);