PHP - Internal 500 error in function - php

Question

i'm getting 500 internal error in this script for some reason i looked trough the script for like an hour or two cant find the issue in the function, its not an mysql error ether..
function CreateGame($Game, $Pass, $Diff, $CharInfo, $Lad, $Desc, $Realm, $Hash, $timestamp, $Bot = 0)
{
$uno = false;
include "conf.php";
$conn = new mysqli($serverip, $username, $password, $dbname, $Port);
if ($conn->connect_error) {
die("Connection failed: " . encrypt($conn->connect_error);
}
$game = mysqli_escape_string($conn, $Game);
$pass = mysqli_escape_string($conn, $Pass);
$diff = mysqli_escape_string($conn, $Diff);
$hash = mysqli_escape_string($conn, $Hash);
$charInfo = mysqli_escape_string($conn, $CharInfo);
$desc = mysqli_escape_string($conn, $Desc);
$realm = substr($Realm, 0, 1);
$realm = mysqli_escape_string($conn, $Realm);
$bot = mysqli_escape_string($conn, $Bot);
$lad = mysqli_escape_string($conn, $Lad);
$UserResult = $conn->query("SELECT * from user where hash = '$hash'");
if (!$UserResult)
{
echo encrypt("hash not found: ". $hash);
}
while($row = $UserResult->fetch_assoc())
{
if($uno == false)
{
$uno = true;
$BanCheckQuerrt = "SELECT * from hwid where id = '".$row['HWID']."'";
$BanCheckResult = $conn->query($BanCheckQuerrt);
while($BanCheckRow = $BanCheckResult->fetch_assoc())
{
if((int)$BanCheckRow['banned'] === 0)
{
$sql = "INSERT INTO games (Game, Password, Description, Difficulty, Realm, Ladder, BotGame, created, timestamp ) VALUES ('$game', '$pass', '$desc', '$diff', '$realm', 'lad', '$bot', '$timestamp', '$timestamp')";
if ($conn->query($sql) === TRUE) {
$sqli = "INSERT INTO Players (GameID, Name, timestamp) Values ('".mysqli_insert_id($conn)."', '$charInfo', '$timestamp')";
if ($conn->query($sqli) === TRUE) {
$updateUserQuerry = "UPDATE user SET playerID = '" .mysqli_insert_id($conn). "' where hash = '$hash'";
$conn->query($updateUserQuerry);
echo encrypt(mysqli_insert_id($conn));
} else {
echo "Error: " . $sqli . "\n" . encrypt($conn->error);
}
} else {
echo "Error: " . $sql . "\n" . encrypt($conn->error);
}
}
else
echo encrypt("Banned!");
}
}
}
$conn->close();
}
any suggestion that would fix this problem would be acceptably.