ArrayIndexOutOfBounds Exception

My Code :
ArrayList models = new ArrayList<>();
final String[] colors = mFloatingView.getResources().getStringArray(R.array.vertical_ntb);

models.add(new NavigationTabBar.Model.Builder(AppCompatResources.getDrawable(mFloatingView.getContext(), R.drawable.vector_player), Color.parseColor(colors[0])).title("Player").build());
models.add(new NavigationTabBar.Model.Builder(AppCompatResources.getDrawable(mFloatingView.getContext(), R.drawable.vector_item), Color.parseColor(colors[1])).title("Items").build());
models.add(new NavigationTabBar.Model.Builder(AppCompatResources.getDrawable(mFloatingView.getContext(), R.drawable.vector_vehicle), Color.parseColor(colors[2])).title("Vehicles").build());
models.add(new NavigationTabBar.Model.Builder(AppCompatResources.getDrawable(mFloatingView.getContext(), R.drawable.vector_injector), Color.parseColor(colors[4])).title("Injector").build());
models.add(new NavigationTabBar.Model.Builder(AppCompatResources.getDrawable(mFloatingView.getContext(), R.drawable.vector_esp_settings), Color.parseColor(colors[3])).title("Aimbot").build());
if(!models.isEmpty())
header_tabbar.setModels(models);

viewpager.setPageTransformer(false, new CubeInTransformer());
viewpager.setAdapter(new MyPagerAdapter(getApplicationContext()));
viewpager.setOffscreenPageLimit(5);
header_tabbar.setViewPager(viewpager, 0);

Error Log :
Fatal Exception: java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
at java.util.ArrayList.get(ArrayList.java:437)
at androidx.viewpager.widget.ViewPager.fakeDragBy(ViewPager.java:2603)
at devlight.io.library.ntb.NavigationTabBar.setModelIndex(NavigationTabBar.java:873)
at devlight.io.library.ntb.NavigationTabBar$10.run(NavigationTabBar.java:1649)
at android.os.Handler.handleCallback(Handler.java:883)
at android.os.Handler.dispatchMessage(Handler.java:100)
at android.os.Looper.loop(Looper.java:224)
at android.app.ActivityThread.main(ActivityThread.java:7562)
at java.lang.reflect.Method.invoke(Method.java)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:539)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:950)

Note : I am using PagerAdapter in a service with a viewpager

I am unable to understand why does this error occured. Please help