The deleted data is in the log file. strings and grep the log file and you'll get the flag.

```
$ strings ib_logfile0
root63a9f0ea7bb98050796b649e85481845
gueste10adc3949ba59abbe56e057f20f883e
$test098f6bcd4621d373cade4e832627b4f6
.flag71e55075163d5c6410c0d9eae499c977
```