Follow these instructions to get the sidebar to reappear:
- In the Chrome address bar, enter chrome://settings
- In the left pane, select Privacy and security
- Click Third-party cookies
- To enable cookies, select Allow third-party cookies
Note: if Block third-party cookies is enabled, then go to Allowed to use third-party cookies at the bottom of the page. Click on Add, then add contactmonkey.com to the list.