Something

error:   	Transactions not supported by database at /usr/lib/perl5/DBI.pm line 1625.
context:  	
...  	
1621:  	sub begin_work {
1622:  	my $dbh = shift;
1623:  	return $dbh->set_err(1, "Already in a transaction")
1624:  	unless $dbh->FETCH('AutoCommit');
1625:  	$dbh->STORE('AutoCommit', 0); # will croak if driver doesn't support it
1626:  	$dbh->STORE('BegunWork', 1); # trigger post commit/rollback action
1627:  	return 1;
1628:  	}
1629:  	
...  	
code stack:  	/usr/lib/perl5/DBI.pm:1625
/usr/share/perl5/DBIx/SearchBuilder/Handle.pm:720
/usr/share/request-tracker3.6/lib/RT/User_Overlay.pm:243
/usr/share/request-tracker3.6/lib/RT/User_Overlay.pm:597
/usr/share/request-tracker3.6/lib/RT/Ticket_Overlay.pm:559
/usr/share/request-tracker3.6/lib/RT/Interface/Web.pm:446
/usr/share/request-tracker3.6/html/Ticket/Display.html:103
/usr/share/request-tracker3.6/html/Ticket/Create.html:300
/usr/share/request-tracker3.6/html/autohandler:279