Save single errors returned from send functions

// FREEBIE

js/models/messages.js

@@ -153,10 +153,16 @@
                     this.set({dataMessage: result.dataMessage});
                 }
                 this.set({sent: true});
+
+                if (result instanceof Error) {
+                    this.saveErrors(result);
+                } else {
                     this.saveErrors(result.errors);
                     if (result.successfulNumbers.length > 0) {
                         this.sendSyncMessage();
                     }
+                }
+
             }.bind(this));
         },