fix: HTMLArea crashing page if Rich Editor could not be loaded

docs/changelog/7.x.x.txt

@@ -7,6 +7,8 @@
     http://www.plainblack.com/bugs/tracker/getlineage-joinclass-expects-string-not-array-ref#wzbxkyWPuzsCRBr3x9QImA
  - fix: "Rejected" messages in CS mail
  - fix: AOIHits and AOIRank not working (Yung Han Khoe / United Knowledge)
+ - fix: HTMLArea form control crashing page if the specified Rich Editor could
+        not be loaded.
 
 
 7.3.17

lib/WebGUI/Form/HTMLArea.pm

@@ -132,7 +132,7 @@ sub toHtml {
 	   $self->set("resizeable", 0);
 	   return $self->SUPER::toHtml.$richEdit->getRichEditor($self->get('id'));
     } else {
-	   WebGUI::ErrorHandler::warn($i18n->get('rich editor load error','Form_HTMLArea'));
+	   $self->session->errorHandler->warn($i18n->get('rich editor load error','Form_HTMLArea'));
 	   return $self->SUPER::toHtml;
 	}