Spliting text and WWWform "if" problem

I have a big problem to make this code work. it reaches on debug "eftase ws 3" after that is dead. What might be the reason??

             IEnumerator LoginAccount(){
         WWWForm Form = new WWWForm();
         Form.AddField("Email", Email);
         Form.AddField("Password", Password);
         WWW LoginAccountWWW = new WWW(LoginUrl, Form);
         yield return LoginAccountWWW;
         Debug.Log ("Attemting to Log In");
 
         Debug.Log ("eftase ws 1");
         if (LoginAccountWWW.error != null) {
         Debug.LogError("CannotConnectToLogin"); //if there is an error, tell us
             } else {
 
         Debug.Log ("eftase ws 2");
                 string LongText = LoginAccountWWW.text;
         Debug.Log (LongText);
         Debug.Log ("eftase ws 3");
 
             //Πιστευω εδω γινεται το λαθος.
             string[] LongTextString = LongText.Split(':');
 
         if(LongTextString[0] == "0"){
                 if(LongTextString[1] == "Success"){
         Debug.Log ("eftase ws 4");
                         Application.LoadLevel("CharactrerCreation");
                 }
         Debug.Log ("eftase ws 5");
                 }else{
             if(LongTextString[1] == "Success"){
                         Application.LoadLevel("CharactrerSelection");
         
                     }
                 }
         }
 }