Errormessage when editing proprty in backend

Hi
Latest OSP (2.9.3)
Template: RealEstate
Joomla 3.4.5

In Backend -> Manage property type
I as superuser was the owner of property
When I was editing a property (change property type) after saving I had this error message

(#200) Insufficient permission to post to target on behalf of the viewer

But after saving and going back to controlpanel the property type was change, so it seems that everything is working except for the error message.
Anyone having the same issue? Or does anyone know how to fix this.

Hi,
It seems the problem comes from Facebook auto posting function. Can you please re-check your Facebook API function again.
Thanks
Dam

Hi
Just checked this now.
It seems as the target is blank after upgrading to the latest OSP I can not choose target for posting property in.

EDIT:
After re input the App ID and the App Secret
Clicking the button "Get Access Token" shows accesstoken (target blank)
Clicken the save button, then the target appears correctly.

But still having the same issue after editing a property.

EDIT 6/11:
Problem solved.
I did everything from the beginning (new App ID and App Secret and posted everything once moore after that everything worked