Active Directory Users and Computers

[dragustelian]

Hello!
After I add this feature (AD UC) and acces AD UC I am getting this.

The directory schema is not accessible because:
An invalid directory pathname was passed.
For this reason the new menu may be inaccurate, and extension snap-ins may not work properly.

Is anyone who has ever encountered such a thing before?

By the way, what are the extensions for photos accepted by the forum?
I wanted to attach the photos and I am not allowed because of the photos with the extension .bmp.

 

[Neemobeer]

png, jpeg, and gif

 

[Neemobeer]

Is this a new active directory forest setup, role transfer and on what version of Windows Server?