From c05a942862151efe86463dab95027b4d92386300 Mon Sep 17 00:00:00 2001
From: James Cole <thegrumpydictator@gmail.com>
Date: Fri, 1 Apr 2016 05:36:29 +0200
Subject: [PATCH] This fixes a null pointer exception. [skip ci]

---
 app/Repositories/Bill/BillRepository.php | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/app/Repositories/Bill/BillRepository.php b/app/Repositories/Bill/BillRepository.php
index 7c5bc3da07..fcda2b7703 100644
--- a/app/Repositories/Bill/BillRepository.php
+++ b/app/Repositories/Bill/BillRepository.php
@@ -252,7 +252,7 @@ class BillRepository implements BillRepositoryInterface
         foreach ($creditCards as $creditCard) {
             if ($creditCard->balance == 0) {
                 // find a transfer TO the credit card which should account for anything paid. If not, the CC is not yet used.
-                $set = TransactionJournal::whereIn(
+                $set       = TransactionJournal::whereIn(
                     'transaction_journals.id', function (Builder $q) use ($creditCard, $start, $end) {
                     $q->select('transaction_journals.id')
                       ->from('transactions')
@@ -270,8 +270,8 @@ class BillRepository implements BillRepositoryInterface
                     $join->on('transactions.transaction_journal_id', '=', 'transaction_journals.id')->where('transactions.amount', '>', 0);
                 }
                 )->first([DB::raw('SUM(`transactions`.`amount`) as `sum_amount`')]);
-
-                $amount = bcadd($amount, $set->sum_amount);
+                $sumAmount = $set->sum_amount ?? '0';
+                $amount    = bcadd($amount, $sumAmount);
             } else {
                 $amount = bcadd($amount, $creditCard->balance);
             }