The most probable cause is that your IP
is black-listed. We have a new authorization system on our app that check constantly for spammers and abusers.
If your IP is blacklisted that means that
- You are an abuser/spammer
- You are using a VPN
- You are connected to a public wi-fi and a lot of people from the same IP are trying to use the app
- Your PC/Phone/Tablet is compromized and is a zombie machine.
But with the manual authorization we know that you are a legit person and that only wants to use the service so we whitelist it!