Fixed key word error

Backend/keyWordsRemaining.php

@@ -0,0 +1,18 @@
+<?php
+require "../bootstrap.php";
+use Backend\Models\Group;
+use Backend\Models\KeyWord;
+
+
+if(isset($_POST['submitKeyWord'])){
+    $keyword = new KeyWord();
+
+    $keyword->keyWord = $_POST['key_word'];
+
+    $keyword->group()->associate(Group::find($_POST['group_id']));
+
+    if(!$keyword->save()){
+       return;
+    }
+
+}