We need Facebook authorization to log you in. We use it as a simple login option, and we never publish to your account without your explicit request.
You can skip these permissions, but then you need to provide your email address in the settings page, and set the timezone in the Queue page for each profile manually.
Login with your personal account, even to manage business pages.
(no worries, that's just the way Facebook does it).
In Facebook, from the menu in the top right corner:
Click "Settings" -> "Blocking". Make sure Symphony Tools is not blocked.
Try accessing this page from a different browser. If it works, then there's likely a browser extension that might be causing the issue.