Prevent crash

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

@@ -429,22 +429,23 @@ public class FragmentMessages extends FragmentEx {
             selectionTracker.addObserver(new SelectionTracker.SelectionObserver() {
                 @Override
                 public void onSelectionChanged() {
+                    try {
                         if (selectionTracker.hasSelection()) {
                             swipeRefresh.setEnabled(false);
+                            if (getViewLifecycleOwner().getLifecycle().getCurrentState().isAtLeast(Lifecycle.State.RESUMED))
                                 if (messages != null)
                                     messages.removeObservers(getViewLifecycleOwner());
                             fabMore.show();
                         } else {
                             predicate.clearAccount();
                             fabMore.hide();
-                        try {
                             if (getViewLifecycleOwner().getLifecycle().getCurrentState().isAtLeast(Lifecycle.State.RESUMED))
                                 loadMessages();
+                            swipeRefresh.setEnabled(true);
+                        }
                     } catch (IllegalStateException ex) {
                         Log.w(ex);
                     }
-                        swipeRefresh.setEnabled(true);
-                    }
                 }
             });
         }