I can't delete a old members group via the AdminCP

Hello.



For some odd reason I am not able delete an old members group I setup when I first created my board.



This members group is no longer used anymore thought when I try to remove it by clicking on the

"Delete Group" button at the right side of the group under the Member Groups > Manage Member

Groups section of the AdminCP, it just gives me the error message below.



System Error



[#1121] You cannot remove the preset groups. You can only rename and edit their settings.



I was wondering if anybody knows why it is not letting me delete this old unused members group and

know what the issue might be? There must be something with the board settings or one of the board

configuration files which is stopping this group from being able to be deleted



Thank you in advance for your help.