I do not wish to give this person super admin rights. I wish to make her an admin who can add or modify users and connect them to groups and pdfs.
Unless I give her super admin access she receives the above error.
Can you interpret the error?

Carl

I added a new user and set the level as administrator.
I created an administrator profile and attached the user to it.

php version is 5.6.30
Attempting to setup new admin
error occurs when logged in new admin attempts to view courses while in the admin area

error occurs in lib/lib.preference.php on line 1154