Just shut your BTCPay server down, deleting the macroon is not enough, you need a new root key.
`lncli changepassword --new_mac_root_key`
🚨PSA for LND + BTCPay Server users🚨
Don’t assume you’re safe after upgrading.
You’re going to want to explicitly destroy your macaroons and macaroons.db and recreate them fresh. This also applies to auth mechanisms for other LN backends.
Also, if you generated a hot on-chain wallet in BTCPay you want to move those funds.