mspyandexmoney выдает ошибку при оплате

Доброго времени суток!
домен на HTTP
при попытке оплатить ЯДом, вылетает ошибка

Fatal error: Uncaught exception 'YM_ApiConnectionError' with message 'Could not verify Yandex.Money's SSL certificate. Please make sure that your network is not intercepting certificates. (Network error: SSL certificate problem: unable to get local issuer certificate)' in /core/components/minishop2/custom/payment/lib/yandexmoney/YandexMoney/ApiRequestor.php:96 Stack trace: #0 /core/components/minishop2/custom/payment/lib/yandexmoney/YandexMoney/ApiRequestor.php(51): YM_ApiRequestor->_handleCurlError(60, 'SSL certificate...') #1 /core/components/minishop2/custom/payment/lib/yandexmoney/YandexMoney/ApiRequestor.php(16): YM_ApiRequestor->_curlRequest('https://sp-mone...', 'grant_type=auth...') #2 /core/components/minishop2/custom/payment/lib/yandexmoney/YandexMoney.php(58): YM_ApiRequestor->request('https://sp-mone...', 'grant_type=auth...') #3 /assets/components/minishop2/pay in /core/components/minishop2/custom/payment/lib/yandexmoney/YandexMoney/ApiRequestor.php on line 96

(из лога [2016-05-02 17:02:32] response: sp-money.yandex.ru/oauth/token; http_code = 0; curl_errno = 60; curl_error = SSL certificate problem: unable to get local issuer certificate
)

Нужно ли подключать ssl и переходить на https?
после перехода на https оплата заработает?
С уважением!