I'm IT for organization, User report me which this problem to posting feed in Facebook page of organization by admin role that User trying to post text or upload picture/video but page still loading and not appear the input box to fill text or upload file and alert pop up in bottom left of page say about : An error occurred. This may be due to a technical glitch that we are currently working to resolve.

So I'm asking to User change device try to post feed in Facebook page in other PC and try to change browser from google chrome to microsoft edge but still the same.

Then I'm asking to User to try in Mobile Phone, Tablet, Notebook which connect to Wifi and It's can post feed in Facebook page.

I'm confuse this problem happend because this User account or Internet which connect to PC or something else?

Could member advise me for this case.