fix: if an error is thrown during the invoice opening, then this is passed on to the user

bin/backend/controls/panels/Invoice.js

@@ -277,6 +277,14 @@ define('package/quiqqer/invoice/bin/backend/controls/panels/Invoice', [
                 return self.doRefresh();
             }).then(function () {
                 self.openInfo();
+            }).catch(function (e) {
+                console.error(e);
+
+                QUI.getMessageHandler().then(function (MH) {
+                    MH.addError(e.getMessage());
+                });
+
+                self.destroy();
             });
         },