v2.1版本无法拉取

我现在无法拉取v2.1版本镜像，请求作者恢复，谢谢！
```
registry.cn-hangzhou.aliyuncs.com/mindoc-org/mindoc:v2.1
```

日志
```
mindoc Pulling
mindoc Error manifest for registry.cn-hangzhou.aliyuncs.com/mindoc-org/mindoc:v2.1 not found: manifest unknown: manifest unknown
Error response from daemon: manifest for registry.cn-hangzhou.aliyuncs.com/mindoc-org/mindoc:v2.1 not found: manifest unknown: manifest unknown
```