Top administrator User Permission Error with ADV Customer Report

I recently installed the module ADV Customer Report.
Suddenly, my Top Administrator privalleges don't work.
Like I can't modify user, user group or user api
I can reset it manually from PHPmyAdmin but then it unchecks by manual adding the permissions "user/group" etc.
However, it unchecks.

Obviously there is some conflict or something that this module caused.

OC 2.1.0.2

Dev doesn't know what's is going on.

same issue on 2302

Go to "user_group" db table and change data type of "permission" column from TEXT to MEDIUMTEXT. This should be in OC by default because TEXT column have maximum length of 65,535 characters and in many cases It is not enough If you have many extensions installed. MEDIUMTEXT column have maximum length of 16,777,215 characters.