In OwnCloud settings (## Security & setup warnings) A bunch of safety comments.
Transactional file locking should be configured to use memory-based locking, not the default slow database-based locking.
Howto configure that server from here?
You are accessing this site via HTTP. We strongly suggest you configure your server to require using HTTPS instead as described in our
No memory cache has been configured. To enhance your performance please configure a memcache if available. Further information can be found in our
), and check for any errors or warnings in the [log]