diff --git a/routes/web.php b/routes/web.php
index 091224d3..1f404211 100644
--- a/routes/web.php
+++ b/routes/web.php
@@ -18,11 +18,12 @@ Route::post('password/reset', 'Auth\ResetPasswordController@postReset')->name('p
 Route::get('/old-invoices', function(){
     $bookings = \App\Booking::where('status', 6)->whereHas('purchaseOrder', function($q){
         $q->whereNotNull('image_path');
-    })->get()->groupBy(function($item) {
+    })->get();
+        $months = $bookings->groupBy(function($item) {
         return $item->created_at->format('Y-m');
     });
     echo "<h1>Total pending invoices:<b>".count($bookings)."</b></h1>";
-    foreach ($bookings as $month => $bookings) {
+    foreach ($months as $month => $bookings) {
         echo "<h3>".$month."</h3><br>";
         foreach ($bookings as $booking) {
             echo "<a target='_blank' href='https://exchange.cief-malaysia.com/booking/".$booking->id."/upload-invoice'>".$booking->id."</a> <small>date: ".$booking->created_at."</small><br>";