boolean isEnded;
                if(!endedAt.equals("null"))
                {
                    endedAt = endedAt.substring(endedAt.indexOf("T") + 1, endedAt.lastIndexOf(":"));
                    isEnded=true;
                }
                else
                {
                    endedAt="ongoing";
                    isEnded=false;
                }
                item.timeDifference=createdAt+" - "+endedAt;
                if(externalSystem.equals("null"))
                {
                    item.externalSystem="";
                }
                else
                {
                    item.externalSystem = externalSystem;
                }
                Log.i("attr",externalSystem);
                items.add(item);

                itemAdapter=new ItemAdapter(getApplicationContext(), items);
                recyclerView.setAdapter(itemAdapter);
                if(isEnded) {
                error->    externalSystemView.setTextColor(Color.BLACK);
                }