Improved activity not found error

app/src/main/java/eu/faircode/email/FragmentOptionsMisc.java

@@ -440,7 +440,7 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
                     getContext().startActivity(app);
                 } catch (Throwable ex) {
                     Log.w(ex);
-                    ToastEx.makeText(getContext(), getString(R.string.title_no_viewer, app), Toast.LENGTH_LONG).show();
+                    Helper.reportNoViewer(getContext(), app);
                 }
             }
         });