reset error message on start

profilegenerator/ts/ProfileGenerator.ts

@@ -322,6 +322,7 @@ class ProfileGenerator {
     event.preventDefault();
     var input = this.json.value;
     var json = {};
+    this.error.innerHTML = "";
     try {
       json = JSON.parse(input);
     } catch (e) {

profilegenerator/webroot/index.html

@@ -498,6 +498,7 @@ var ProfileGenerator = (function () {
         event.preventDefault();
         var input = this.json.value;
         var json = {};
+        this.error.innerHTML = "";
         try {
             json = JSON.parse(input);
         }