One thing that I would try is moving or copying the File GDB temporarily to a directory that does not contain any spaces or parentheses in the path. These two items have caused many problems for people over the years. Another issue may be the length of total file path, though by the looks of it, that would be the same for you as for them.
In general, a good rule of thumb is to try to keep the file name as short as possible, as well as the directory path as short as possible and free of special characters. Where possible, it is better to use the underscore (_) instead of a dash (-)
Actually, looking at your picture, I see another item that is concerning.
On the left, the directory you are pointing at:
Prop-540 Geographical Information System (GIS) Data files
Contains two directories:
Coastal SP 2012
It does not contain your geodatabase
On the right, the directory only contains
It does not show the other two directories.
Is there any way that they could actually be pointing to two different directories, even though it looks like the same one? The only other thing I could guess, would be a permissions issue of some sort.