update

app/Http/Controllers/admin/Issue.php

@@ -162,8 +162,7 @@ class Issue extends Controller
         }
         $winArr = array_map('intval', explode(',', $winning_numbers));
         $combo = IssueService::getCombo($winArr);
-        $image = null;
-        $ret = IssueService::lotteryDraw($id, $winning_numbers, $combo, $image);
+        $ret = IssueService::lotteryDraw($id, $winning_numbers, $combo, "");
         if ($ret['code'] == BaseService::NOT) {
             return $this->error($ret['code'], $ret['error'] ?: $ret['msg']);
         }