微修正

app/Email/Members/EntryMessageBuilder.php

@@ -34,6 +34,10 @@ abstract class EntryMessageBuilder
 
     public static function getTaxExplain(SeasonTicketContractPlan $plan): string
     {
+        // if (!$plan->taxRate || !$plan->taxAmount) {
+        //     return "";
+        // }
+
         return sprintf(
             "（消費税等含む，適用税率%d%% 　消費税額 %s円）",
             $plan->taxRate ?? 0,