diff --git a/.gitea/checker/notifier.py b/.gitea/checker/notifier.py
index 26ff9ee..a3a14a9 100644
--- a/.gitea/checker/notifier.py
+++ b/.gitea/checker/notifier.py
@@ -144,8 +144,7 @@ def build_markdown_notification(
 
     # 4. 普通参数变更（非路径变更）仍使用原有格式
     if changed_reports:
-        parts.append("# API参数变更通知")
-        parts.append(f"- **变更类型：** 修改参数")
+        parts.append("# 【API参数变更通知】")
         parts.append(f"- **修改人：** {push_user}")
         parts.append(f"- **修改时间：** {push_time}")
         parts.append("")
diff --git a/ftb/src/main/java/ftb/test/controller/CultureClockInController.java b/ftb/src/main/java/ftb/test/controller/CultureClockInController.java
index f15cfc4..8afeb76 100644
--- a/ftb/src/main/java/ftb/test/controller/CultureClockInController.java
+++ b/ftb/src/main/java/ftb/test/controller/CultureClockInController.java
@@ -70,7 +70,7 @@ public class CultureClockInController {
      * @param response HttpServletResponse
      */
     @GetMapping(value = "/random-preview/base641")
-    public ActionResult<Base64ImageVo> getRandomPicPreviewBase64(@RequestParam(value = "lastCombo1", required = true) String lastCombo, HttpServletRequest request, HttpServletResponse response) throws Exception {
+    public ActionResult<Base64ImageVo> getRandomPicPreviewBase64(@RequestParam(value = "lastCombo1", required = false) String lastCombo, HttpServletRequest request, HttpServletResponse response) throws Exception {
 
         MutablePair<String, BufferedImage> pair = cultureClockInService.getRandomPicPreview(lastCombo, requestUrl);
         if (pair == null || pair.getRight() == null) {