unchecking checkbox doesnt remove id from arraylist

I am doing functionality of checkbox and it is working fine for checked but when i uncheck the checkbox it gives error.. and one thing when i checked the checkbox i am storing id of that item into arraylist and i want to remove that id when uncheck the checkbox

final CheckBox checkBox = listViewItem.findViewById(R.id.edit);


        checkBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                if (buttonView.isChecked() ) {
                    proUseritems.add(String.valueOf(heroList.get(position).getProfile_id(position)));
                    Toast.makeText(mCtx, "" + proUseritems.toString(), Toast.LENGTH_SHORT).show();
                }
                else {



                        proUseritems.remove(position);
                        Toast.makeText(mCtx, "" + proUseritems, Toast.LENGTH_SHORT).show();

                 }
            }
        });