Those who know firebase and java, please write

There is a problem between my application and firebase I'm looking for a skilled friend to fix it public void getGhostModeRemaining(){ [login to view URL]("lakpi-com1-default-rtdb").document("user_id").collection([login to view URL]([login to view URL]().getId())).document("ghost_mode").get().addOnCompleteListener(new OnCompleteListener<DocumentSnapshot>() { @Override public void onComplete(@NonNull Task<DocumentSnapshot> task) { if ([login to view URL]()) { DocumentSnapshot document = [login to view URL](); if ([login to view URL]()) { Calendar cal = [login to view URL](); String endDate=getDate([login to view URL]([login to view URL]([login to view URL]().get("end_date")))); String current_date=getDate([login to view URL]()); Date date1; Date date2; SimpleDateFormat dates = new SimpleDateFormat("dd-MM-yyyy"); try { date1 = [login to view URL](current_date); date2 = [login to view URL](endDate); long difference = [login to view URL]([login to view URL]() - [login to view URL]()); long differenceDates = difference / (24 * 60 * 60 * 1000); String dayDifference = [login to view URL](differenceDates); [login to view URL]("GET_____DIFFERENCE"+dayDifference); if(differenceDates==0){ [login to view URL]([login to view URL]); [login to view URL](true); [login to view URL]([login to view URL]); }else{ String verifiedbadgetext = [login to view URL]().getResources().getString([login to view URL]); verifiedbadgetext = [login to view URL]("####",dayDifference); [login to view URL](verifiedbadgetext); [login to view URL]([login to view URL]); } } catch (ParseException e) { [login to view URL](); } [login to view URL]("DocumentSnapshot data: "+ [login to view URL]()); Log.d(TAG, "DocumentSnapshot data: " + [login to view URL]()); } else { Log.d(TAG, "No such document"); } } else { Log.d(TAG, "get failed with ", [login to view URL]()); } } }); }