fix

cooleshow-user/user-biz/src/main/java/com/yonge/cooleshow/biz/dal/service/impl/MusicTagServiceImpl.java

@@ -60,6 +60,9 @@ public class MusicTagServiceImpl extends ServiceImpl<MusicTagDao, MusicTag> impl
          musicTagVoIPage.getRecords()
                  .forEach(musicTagVo -> {
                      List<MusicTagVo> childrenList = musicTagMap.get(musicTagVo.getId().toString());
+                     if (CollectionUtils.isEmpty(childrenList)) {
+                         return;
+                     }
                      childrenList.forEach(children -> {
                          musicTagVo.setEnablePlatformMusicSheetNum(musicTagVo.getEnablePlatformMusicSheetNum() + children.getEnablePlatformMusicSheetNum());
                          musicTagVo.setEnableTeacherMusicSheetNum(musicTagVo.getEnableTeacherMusicSheetNum() + children.getEnableTeacherMusicSheetNum());