Forgot to make it static.

michaeldrennen · michaeldrennen · commit 308eeded140f · 2020-04-23T17:01:29.000-06:00
diff --git a/src/SentryHelper.php b/src/SentryHelper.php
@@ -1655,7 +1655,7 @@ public static function splitCDSName( string $nameWithLot ): array {
      * @param $priceField
      * @return float|int|null
      */
-    public function wapp( $iterable, $quantityField, $priceField ) {
+    public static function wapp( $iterable, $quantityField, $priceField ) {
         $sumProduct = 0;
         $sumWeight  = 0;
 
