Cannot use a leading .. To exit above the top directory.
The error is pretty clear: the path you at trying to use is using ".." to try and access a folder which is above the top-level - or root - folder.
Probably, that means you created a path like "C:\..\myfolder" or similar, but since we can't see your code we can't tell you what to do to fix it.
So use the debugger, and examine the path you are trying to use carefully - then start looking for why it is like that. But we can't do any of that for you!