fix

netflix-web/src/main/java/com/cyksj/web/controller/coupon/CouponFrontController.java

@@ -205,7 +205,7 @@ public class CouponFrontController {
 				.eq(CouponSku::getCouponId, dto.getCouponId())
 				.select(CouponSku::getId).last("limit 1"));
 		if (couponSku == null) {
-			throw BusinessRuntimeException.getInstance("");
+			throw BusinessRuntimeException.getInstance(I18nMessageUtil.getI18nMsg("coupon_sku_not_available_error"));
 		}
 		return GatewayResponse.SUCCESS.newBuilder().toResult(dto);
 	}