Created Unassigned: Unable to Connect Sharepoint 2013 [18]

Dear Support Team,

I have installed SPFilleZilla2013 and configured as the instruction given but i am getting the error shown below.

8:34:16 AM: Loading Site Lists...
8:34:18 AM: Microsoft.SharePoint.Client.IdcrlException: Identity Client Runtime Library (IDCRL) could not look up the realm information for a federated sign-in.
at Microsoft.SharePoint.Client.Idcrl.IdcrlAuth.GetUserRealm(String login)
at Microsoft.SharePoint.Client.Idcrl.IdcrlAuth.GetServiceToken(String username, String password, String serviceTarget, String servicePolicy)
at Microsoft.SharePoint.Client.Idcrl.SharePointOnlineAuthenticationProvider.GetAuthenticationCookie(Uri url, String username, SecureString password)
at Microsoft.SharePoint.Client.SharePointOnlineCredentials.GetAuthenticationCookie(Uri url, Boolean refresh)
at Microsoft.SharePoint.Client.ClientRuntimeContext.SetupRequestCredential(ClientRuntimeContext context, HttpWebRequest request)
at Microsoft.SharePoint.Client.SPWebRequestExecutor.GetRequestStream()
at Microsoft.SharePoint.Client.ClientContext.GetFormDigestInfoPrivate()
at Microsoft.SharePoint.Client.ClientContext.EnsureFormDigest()
at Microsoft.SharePoint.Client.ClientContext.ExecuteQuery()
at BandR.SpComHelper.GetSiteLists(String spSiteUrl, String spSiteUsername, String spSitePwd, String spSiteDomain, Boolean isSpOnline, List`1& lstObjs, String& msg)


Please help me to solve this issue