It worked, and then it stopped

Three causes explain almost every case, and they are worth checking in this order:

1. Your session expired. A configuration lasts 30 days. If it has been about that long, create a new configuration — sign in at litoravpn.com/get or open a fresh setup link. This is the most common cause and takes two minutes.
2. Your network does not carry the standard tunnel. Not every network passes the standard WireGuard handshake cleanly. If a standard tunnel stopped connecting and a new configuration did not help, create an AmneziaWG configuration instead — that is exactly what it is for.
3. The exit address was retired. Addresses are retired and replaced on our side; a newly created configuration lands on a current one. Again: create a new configuration.

Notice the pattern: create a new configuration fixes all three. If a fresh AmneziaWG configuration still cannot connect, message the bot and say which network you are on (mobile or fixed, which operator) — that is the information that helps.