Fix create page page error

app/modules/backend/modules/page/templates/page/create.j2

@@ -20,7 +20,7 @@
         </select>
     </div>
     <div class="form-group form-check">
-        <input class="form-check-input" type="checkbox" name="private" value="1" id="privateCheck" {{ 'checked' if page.private }}>
+        <input class="form-check-input" type="checkbox" name="private" value="1" id="privateCheck">
         <label class="form-check-label" for="privateCheck">
             Private
         </label>