Added a discussion
Several times after installation I receive the following database error on my email:
INSERT INTO `sys_keys` SET `key` = ?, `data` = ?, `expire` = ?
Duplicate entry '11d0a1d635dad03f7036d1f156721e63' for key 'PRIMARY'
The error was found in query function in the file (path hidden)/inc/classes/BxDolKeyQuery.php at line 24.
No any files were modified. I just installed UNA and started to customize it in Studio.
No users. The email comes in time when no actions are performed in either admin panel or front-end.