MyChat Client error #0268: network resource "RESOURCE" unavailable at the moment or the link is invalid

Error

MyChat Client error #0268: network resource "RESOURCE" unavailable at the moment or the link is invalid.

The link to a folder or file in a local network is unavailable at the moment.

A couple of options that should be checked one by one in this order:

1.a computer is turned off;

2.file/folder deleted;

3.a computer is working, but not access to the link because of security measures;

4.a computer is working, but WINS server either is off or not configured and the resource search is not working in a local network;

5.an antivirus or personal firewall that does not allow access to shared resources is running on a computer with a specified file or folder.