我在界面顶部看到了这个黄色横幅。昨晚我将照片与实例同步，但什么都没上传，所有照片都不见了！已删除！
当我单击更多信息时，我看到错误：
Transactional file locking should be configured to use memory-based locking, not the default slow database-based locking. See the documentation ↗ for more information.
We recommend to enable system cron as any other cron method has possible performance and reliability implications.
Some files have not passed the integrity check. Further information on how to resolve this issue can be found in our documentation. (List of invalid files… / Rescan…)
The "Strict-Transport-Security" HTTP header is not configured to at least "15552000" seconds. For enhanced security we recommend enabling HSTS as described in our security tips.
No memory cache has been configured. To enhance your performance please configure a memcache if available. Further information can be found in our documentation.
它向我提供了可以了解有关该问题的更多信息的链接，但这些链接已失效（404）
发生了什么事？？？我不明白为什么我的所有照片一下子就被删除了。我敢打赌，如果其他用户也遇到这种情况，他们一定会非常沮丧。尤其是如果有人在商业环境中运行实例。
