从本地复制图像到网络共享文件夹时出错

我正在尝试将图像从外部设备复制到网络上的文件夹，但是我的代码存在的问题是它在本地驱动器（c :)中创建了一个文件夹并处理了图像。但我在网络上有此文件夹。它应该只创建一个具有今天日期的文件夹，然后在网络上复制图像。

string _ftpURL = @"00.000.00.0";  //Host URL or address of the SFTP server
//string _ftpURL = @"0.0.0.0"; 
string _UserName = "root"; //User Name of the SFTP server
string _Password = "3p1"; //Password of the SFTP server
int _Port = 2222; //Port No of the SFTP server (if any)
string _ftpDirectory = "/opt/prassel/data/snap/*.jpg"; //The directory in SFTP server where the files will be uploaded
var LocalDirectory = string.Format("\\ws4.lboro.ac.uk\\SY0-1ticketPhotofolder\\TICKET PHOTO'S\\{0:yyyy-MM-dd}", DateTime.Now);
System.IO.Directory.CreateDirectory(LocalDirectory);

Sftp Connection = new Sftp(_ftpURL, _UserName, _Password);
Connection.Connect(_Port);
Connection.Get(_ftpDirectory, LocalDirectory);
Connection.Close();