Problem z modułem Dotpay

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Cześć,

mamy problem z przejście do płatności w module dotpay, skonfigurowane mamy wszystko. W logach mam taki błąd:

[Fri May 31 15:20:43.335790 2019] [php7:error] [pid 593] [client 185.24.203.51:20280] PHP Fatal error:  Uncaught Error: Call to a member function getName() on null in /var/www/prestashop/classes/Mail.php:631\nStack trace:\n#0 /var/www/prestashop/classes/Mail.php(387): MailCore::getTemplateBasePath('pl/log_alert', false, NULL)\n#1 /var/www/prestashop/classes/PrestaShopLogger.php(99): MailCore::send(1, 'log_alert', 'Log: masz nowe ...', Array, 'marcin.wajda@co...')\n#2 /var/www/prestashop/classes/PrestaShopLogger.php(139): PrestaShopLoggerCore::sendByMail(Object(PrestaShopLogger))\n#3 /var/www/prestashop/classes/PaymentModule.php(907): PrestaShopLoggerCore::addLog('Nie mo\\xC5\\xBCna za\\xC5\\x82...', 4, '0000001', 'Cart', 0)\n#4 /var/www/prestashop/modules/dotpay/controllers/front/preparing.php(82): PaymentModuleCore->validateOrder(NULL, 14, '0.00', 'P\\xC5\\x82atno\\xC5\\x9Bci Dot...', NULL, Array, NULL, false, '0a277842b35ed82...')\n#5 /var/www/prestashop/classes/controller/Controller.php(281): DotpayPreparingModuleFrontController->initContent()\n#6 /var/www/prestashop/classes/Dispatcher.php(511): ControllerCore->run()\n#7 /va in /var/www/prestashop/classes/Mail.php on line 631,

Jest ktoś w stanie pomóc?