Firstly, please make sure you are not connected to any VPN when connecting to TOR Browser. Then try the different solutions below.
1. Connect to TOR Browser. If the connection fails, a red "Restart" button will appear. Press this button and wait for it to connect.
If it doesn't work try a different solution.
2. Close the app from the background and restart it. Then connect to TOR Browser again. If it doesn't work try a different solution.
3. Restart your iPhone/iPad and Wi-Fi router. Then connect to TOR Browser again.
If you are still unable to connect to the VPN after following all the given solutions. Please contact us at firstname.lastname@example.org