修改bug。

win-module-infra/win-module-infra-biz/src/main/java/com/win/module/infra/controller/trends/TrendsController.java

@@ -60,12 +60,14 @@ public class TrendsController {
         List<TrendsDO> list = trendsService.getTrendsList(exportReqVO);
         List<TrendsRespVO> trendsRespVOList = TrendsConvert.INSTANCE.convertList(list);
         for(TrendsRespVO trendsRespVO : trendsRespVOList) {
+            if(trendsRespVO.getCreator() != null) {
                 AdminUserRespDTO user = adminUserApi.getUser(Long.parseLong(trendsRespVO.getCreator()));
                 if (user != null) {
                     trendsRespVO.setNickname(user.getNickname());
                     trendsRespVO.setAvatar(user.getAvatar());
                 }
             }
+        }
         return success(trendsRespVOList);
     }