Fix in controller and update in partial

Templates/controller.pm.tem

@@ -157,6 +157,7 @@ sub do_update {
 		}
 	</tal:block>
 	if ($ret ne "ok"){
+		$c->stash(error => $c->l($ret));
 		$c->do_display($thispanel);
 	} else {
 		#Do whatever is needed, including writing values to the DB