If you are configuring Chatcast, almost all of your tasks require Admin rights from your FB page. Often times, we've been working with the page for so long we simply do not know what our status is. Here is a simple guide on how to check.
1) Go to your Page. Click Settings on the top right.
2. Go to Page Roles
3. Here is your role! If you are an admin, great. If you are an editor, please ask your admin listed on the page about granting you admin rights.