Object reference not set to an instance of an object help (JS)

Hi all,

Here is my code that checks to see a if a int variable is between different ranges by using if statments.

There's probably a more elgant way of doing this but the error I am getting is an NullReferenceException: Object reference not set to an instance of an object. I know this error means it can't access something vital but in the inspector everything is enabled and the scripts are connected with game objects. Here is my code and a screenshot to prove that.

 function Start(){
     if (File.Exists(fileName))
     {
         var sa = new StreamReader(fileName);
         var fileContents = sa.ReadToEnd();
 
         scorecounter.text = fileContents.ToString();
         sa.Close();
 
         var intfilecont = fileContents.parseInt;  //error happens here
 
     
         if (intfilecont > 0 && intfilecont < 21){
             comment.text = "POTATOE Damn son, invest in a better PC";        
          }
          if (intfilecont > 19 && intfilecont < 31){
             comment.text = "BRONZE git gud m8";        
          }
          if (intfilecont > 29 && intfilecont < 41){
             comment.text = "SILVA Your PC is c00l and g00d";        
          }
          if (intfilecont > 39 && intfilecont < 51){
             comment.text = "G0LD Wow! very nice mate";        
          }
          if (intfilecont > 49 && intfilecont < 69){
             comment.text = "PLATINUM YO IS YOUR PC LIT? like is it literally on fire now?";
          }
          if (intfilecont == 69){
             comment.text = "MLG You must be the luckiest quick scoper to live m9";
          }
          if (intfilecont > 69 && intfilecont < 90){
             comment.text = "SUPER SAIYAN to go even further beyond!";        
          }
          if (intfilecont > 99){
             comment.text = "NASA wtf do you have a super computer?";        
          }
     }
 }
 
 
 ![alt text][1]
 
 

There is more code above this that isn't attached to the problem if you were wondering.

I don't know what is happening and would appreciate any help.

[1]: /storage/temp/100758-proof.png