[TYPO3-formidable] Captcha - Reaching maximum number of attempts

[dpino]

Hello,

I've been using the Catpcha Renderlet recently, and it happened that 
some times instead of the image with the captcha an image with the 
following message was shown: "ERREUR: Dépassement du nombre maximum de 
cryptogrammes".

I took a look at the code and saw that this error is shown when the 
user reaches the maximum number of attempts 
(rdt_captcha/res/lib/cryptographp.inc.php:36):

if ($_SESSION['cryptcptuse']>=$cryptusemax) {
    header("Content-type: image/png");
    readfile('img/erreur1.png');
    exit;
}

$cryptusemax is set at rdt_captcha/res/lib/config.inc.php:141:
$cryptusemax = $_SESSION["rdt_captcha"]["config"]["cryptusemax"];

and $_SESSION["rdt_captcha"]["config"]["cryptusemax"] is set at 
rdt_captcha/api/class.tx_rdtcaptcha.php:506:

if(($sValue = $this->_navConf("/maxattempt")) !== FALSE) {
    if(is_numeric($this->aElement["maxattempt"])){
       $_SESSION["rdt_captcha"]["config"]["cryptusemax"] = 
$this->aElement["maxattempt"];
    }else{
       $_SESSION["rdt_captcha"]["config"]["cryptusemax"] = 
1000000000000000000;
    }
}else{
       $_SESSION["rdt_captcha"]["config"]["cryptusemax"] = 
1000000000000000000;
}

I'm not defining any maxattempt value in my Renderlet, so I guess the 
value of $_SESSION["rdt_captcha"]["config"]["cryptusemax"] is set to the 
default (1000000000000000000), which is a very high value IMHO. Is it 
possible to surpass this value? (my website is still not public), does 
this happening to anybody before? what should I look into? Any feedback 
will be highly appreciated.

Regards,

Diego