If you are facing problem with Tor Browser's connectivity, then please follow the given solution below:
1. Quit the Tor Browser app from the device memory.
2. Reboot your Apple device and the WiFi router.
3. Make sure you are properly connected to the internet.
4. Start the Tor Browser app and try opening your desired website again.
5. If the above solution doesn't works for you, then re-install the app.