Laravel 5.8。*使用GuzzleHttp进行制作

I'm using GuzzHttp in my laravel project to post some data to an API. In my local enviroment I have to to create my client with the cacert.pem file verification like this:

$client = new \GuzzleHttp\Client(['verify' => 'C:\wamp64\bin\php\php7.2.14\cacert.pem']);

But I can't do so on my shared hosting. So, removing that verification:

$client = new \GuzzleHttp\Client();

Results on an internal server error:

[2019-06-11 15:17:10] local.ERROR: GuzzleHttp\Exception\ServerException: Server error: `POST https://pruebas2.mayoristaseguridad.es/tiendaseguridad/02-ConectorLaravelPrestashop/ConectorCategorias.php` resulted in a `500 Internal Server Error` response in /home/admin/web/iberoseguridad.eu/public_html/csv_products/vendor/guzzle/guzzlehttp/guzzle/src/Exception/RequestException.php:113

Is there a way to fix this error?

Not sure if this will help, here it goes anyways

// Disable validation entirely (don't do this!). $client->request('GET', '/', ['verify' => false]);

Guzzle verify api