I was doing a kickstart of a Akeeba Backup and hit an SQL error. However I got a php notice:
( ! ) Notice: Undefined variable: sql in ROOT\installation\framework\database\driver\mysqli.php on line 597
Move the unset($sql) on line 562 of that file to after the if() statement dealing with the error handling (~line 602) seems to fix it!
Kind Regards,
George