Sending file to FTP through FtpPutFileW (MQL4)

So here is the deal : I need to upload and download a file from my FTP.

I obviously am missing something, as I can connect to it, but not upload the file. Any idea on why "FtpPutFileW" isn't working in this case?

Cheers !

   #define INTERNET_SERVICE_FTP    1
   #define INTERNET_SERVICE_GOPHER 2
   #define INTERNET_SERVICE_HTTP   3

   #define FTP_TRANSFER_TYPE_UNKNOWN   0x00000000
   #define FTP_TRANSFER_TYPE_ASCII     0x00000001
   #define FTP_TRANSFER_TYPE_BINARY    0x00000002

   int hIntObj, hIntObjConn;
   string Password, ServerName, UserName;
   bool success = false;
   
   //Uploading the file
   hIntObj=InternetOpenW("MyInternetObject",0, NULL,NULL,0);
   
   ServerName="127.0.0.1:14147";
         
   UserName="geek";
   Password="testing";
         
   hIntObjConn=InternetConnectW(hIntObj, ServerName, 1, UserName, Password, INTERNET_SERVICE_HTTP, 0, 0);

   if (hIntObjConn>0)
      {
       printf("Successfully connected. %d", hIntObjConn);
             
       string LocalFile=TerminalInfoString(TERMINAL_DATA_PATH) + "\\MQL4\\Files\\Expert.mqh.tpl";
       string ServerFile="Expert.mqh.tpl";

       FtpPutFileW(hIntObjConn, LocalFile, ServerFile, FTP_TRANSFER_TYPE_ASCII, 0);
       }