Error creating a new payment methode

-- HikaShop version -- : 5.1.2
-- Joomla version -- : 5.2.3
-- PHP version -- : 8.2

When I create a new payment methode I get the error:

in /home/deb3757n292/domains/johnflora.nl/public_html/plugins/hikashoppayment/platron/PG_Signature.php (line 17)

    public static function getScriptNameFromUrl ( $url )
    {
        $path = parse_url($url, PHP_URL_PATH);
        $len  = strlen($path);
        if ( $len == 0  ||  '/' == $path{$len-1} ) {
            return "";
        }
        return basename($path);
    }

That fixed it. Thank you. Unfortunately, now I cannot see the new payment method in the check-out at all. I suspect I need to go to authorize.net and get the various keys they need. The nomenclature is different from what I had on the old payment method.
I'll post here if I solve this latest issue.