I had the same problem. Let me tell you how i fixed it.
Download the full version of Dolphin 6.1.1 to your computer. There, go to the admin folder and copy profiles.php and upload this file to your server and overwrite with the current one.
The sames goes for inc/admin.inc.php (in case you have problems)
Appearantly, the upgrade pack does not come with same file as the oroginal file.
It is an idea to keep the full Dolphin 6.1.1 files in hand in case.