Error on file_get_contents()

Me here too, I have the same problem and need a fix by the plugin owner!

My solution was to replace the file_get_contents() function in the file recaptchav2.php line 45 with curl like in this sample:

https://chillydraji.wordpress.com/2014/05/13/warning-file_get_contents-function-file-get-contents-http-wrapper-is-disabled-in-the-server-configuration-by-allow_url_fopen0/

My changed code in the file recaptchav2.php:

45: //$response = file_get_contents( $path . $req );
46: $response = self::curl( $path . $req );

...

static function curl($url){
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,$url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
$return = curl_exec($ch);
curl_close ($ch);
return $return;
}