Hello,

I tried to import dump from the attachment and the following error occurs:
---
Unable to import the xf_emptyhack dump:
Unable to restore database 'xf_emptyhack'
ERROR 1115 (42000) at line 17: Unknown character set: 'utf8mb4'
(Error code 22)
---

The root cause of it is that `utf8mb4` charset is not supported by MySQL 5.1, or not supported in that OS distribution.

So, please install MySQL server version greater than 5.5.3 manually and then connect it to Plesk in "Plesk > Tools&Settings > Database servers".
Or you can upgrade the Plesk installation and install MySQL 5.6 using autoinstaller.
Best regards,

Alexey Lapshin
Technical Support