A member of our congregation is trying to upload a file to SharePoint but is getting the following error:
List does not exist.
The page you have selected contains a list that does not exist. It may have been deleted by another user.
We have SharePoint Foundation installed on our server. He is trying to upload from his laptop using Windows 8.1. I have tried uploading from my computer using his ID and it works fine. He is also accessing it from outside the network through the Internet. Does anyone have a clue what is causing this error and how to fix it?