fix

mec-biz/src/main/java/com/ym/mec/biz/service/impl/ImGroupServiceImpl.java

@@ -532,7 +532,7 @@ public class ImGroupServiceImpl extends BaseServiceImpl<String, ImGroup> impleme
 
 
         // 注册主播用户信息到三方平台
-        imGroupCoreService.register(userId.toString(),"", name, sysUserService.getImAvatar(sysUserService.queryUserById(userId)));
+        imGroupCoreService.register(userId.toString(),"", name, sysUserService.getImAvatar(teacherDao.getUser(userId)));
 
         boolean createFlag = false;
         // 群组不存在，先创建群组