Player has signed in. jquery.js%20line%202%20%3E%20eval :137:9 SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data

1.                         console.log("Player has signed in.");
                           $("#content").load("pages/play.php");
                       } else if(data == 0){
                           $("#content").load("pages/signIn.php");
                           return false;
                       }
                   });
           }
   
       });