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app/Services/KeyboardService.php

@@ -200,7 +200,7 @@ class KeyboardService extends BaseService
     public static function menuEvent($chatId, $event = '')
     {
         switch ($event) {
-            case "":
+            case "promotionalActivity":
                 // 删除个人缓存
                 Util::delCache($chatId);
                 return ActivityRewardService::promotionalActivity($chatId);