fix error when selecting too many vote options

app/src/main/java/gr/thmmy/mthmmy/activities/topic/TopicAdapter.java

@@ -263,7 +263,8 @@ class TopicAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
                 holder.submitButton.setOnClickListener(v -> {
                     if (!viewModel.submitVote(holder.optionsLayout)) {
                         holder.errorTooManySelected.setText(context.getResources()
-                                .getQuantityText(R.plurals.error_too_many_checked, poll.getAvailableVoteCount()));
+                                .getQuantityString(R.plurals.error_too_many_checked, poll.getAvailableVoteCount(),
+                                        poll.getAvailableVoteCount()));
                         holder.errorTooManySelected.setVisibility(View.VISIBLE);
                     }
                 });

app/src/main/java/gr/thmmy/mthmmy/viewmodel/TopicViewModel.java

@@ -10,6 +10,8 @@ import android.widget.LinearLayout;
 import android.widget.RadioGroup;
 
 import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.TimerTask;
 
 import gr.thmmy.mthmmy.activities.settings.SettingsActivity;
 import gr.thmmy.mthmmy.activities.topic.tasks.EditTask;
@@ -144,7 +146,7 @@ public class TopicViewModel extends BaseViewModel implements TopicTask.OnTopicTa
         if (optionsLayout.getChildAt(0) instanceof RadioGroup) {
             RadioGroup optionsRadioGroup = (RadioGroup) optionsLayout.getChildAt(0);
             votes.add(optionsRadioGroup.getCheckedRadioButtonId());
-        } else if (optionsLayout.getChildAt(0) instanceof CheckBox) {
+        } else if (optionsLayout.getChildAt(0) instanceof LinearLayout) {
             for (int i = 0; i < optionsLayout.getChildCount(); i++) {
                 LinearLayout container = (LinearLayout) optionsLayout.getChildAt(i);
                 if (((CheckBox) container.getChildAt(0)).isChecked())