from github
I figured out.
In index.php, the login part, change the following code:
$AddressCheck = $mysqli->query("SELECT * FROM faucet_user_list WHERE address = '$Address' LIMIT 1")->fetch_row()[0];
to
$AddressCheck = $mysqli->query("SELECT COUNT(id) FROM faucet_user_list WHERE address = '$Address' LIMIT 1")->fetch_row()[0];
This error caused duplicate entries, remove in the table 'user_list' the entries with the same bitcoin address.
In includes/session.php change the code with the new code from github:
https://github.com/Salmen2/Faucetbox-Faucet/blob/master/includes/session.phpCheers
Salmen