Unable install Certificate for subdomain in Godaddy Pleask Server

Hello Experts,

I am using Godaddy Pleask admin for my stuffs. I want to use this SSL certificate for one of my subdomain.
I am getting error of below.

ERROR: CREATE_CLIENT:WPLEClient\Exceptions\LEFunctionsException: Could not generate key pair! Check your OpenSSL configuration. OpenSSL Error:
error:02001003:system library:fopen:No such process
error:2006D080:BIO routines:BIO_new_file:no such file
error:0E064002:configuration file routines:CONF_load:system lib
error:02001003:system library:fopen:No such process
error:2006D080:BIO routines:BIO_new_file:no such file
error:0E064002:configuration file routines:CONF_load:system lib
in G:\PleskVhosts\ketinfotech.com\onlinesabji.ketinfotech.com\wp-content\plugins\wp-letsencrypt-ssl\lib\Exceptions\LEFunctionsException.php:51
Stack trace:
#0 G:\PleskVhosts\ketinfotech.com\onlinesabji.ketinfotech.com\wp-content\plugins\wp-letsencrypt-ssl\lib\LEFunctions.php(65): WPLEClient\Exceptions\LEFunctionsException::GenerateKeypairException('Could not gener...')
#1 G:\PleskVhosts\ketinfotech.com\onlinesabji.ketinfotech.com\wp-content\plugins\wp-letsencrypt-ssl\lib\LEAccount.php(74): WPLEClient\LEFunctions::RSAGenerateKeys(NULL, 'G:\\PleskVhosts\\...', 'G:\\PleskVhosts\\...')
#2 G:\PleskVhosts\ketinfotech.com\onlinesabji.ketinfotech.com\wp-content\plugins\wp-letsencrypt-ssl\lib\LEClient.php(141): WPLEClient\LEAccount->__construct(Object(WPLEClient\LEConnector), 1, 'sangramsinh.pat...', Array)
#3 G:\PleskVhosts\ketinfotech.com\onlinesabji.ketinfotech.com\wp-content\plugins\wp-letsencrypt-ssl\classes\le-core.php(166): WPLEClient\LEClient->__construct('sangramsinh.pat...', false, 1, 'G:\\PleskVhosts\\...')
#4 G:\PleskVhosts\ketinfotech.com\onlinesabji.ketinfotech.com\wp-content\plugins\wp-letsencrypt-ssl\classes\le-core.php(146): WPLE_Core->wple_create_client()
#5 G:\PleskVhosts\ketinfotech.com\onlinesabji.ketinfotech.com\wp-content\plugins\wp-letsencrypt-ssl\classes\le-core.php(115): WPLE_Core->wple_generate_verify_ssl()
#6 G:\PleskVhosts\ketinfotech.com\onlinesabji.ketinfotech.com\wp-content\plugins\wp-letsencrypt-ssl\admin\le_admin.php(514): WPLE_Core->__construct(Array)
#7 G:\PleskVhosts\ketinfotech.com\onlinesabji.ketinfotech.com\wp-content\plugins\wp-letsencrypt-ssl\admin\le_admin.php(1711): WPLE_Admin->wple_save_email_generate_certs()
#8 G:\PleskVhosts\ketinfotech.com\onlinesabji.ketinfotech.com\wp-includes\class-wp-hook.php(292): WPLE_Admin->wple_admin_init_hooks('')
#9 G:\PleskVhosts\ketinfotech.com\onlinesabji.ketinfotech.com\wp-includes\class-wp-hook.php(316): WP_Hook->apply_filters(NULL, Array)
#10 G:\PleskVhosts\ketinfotech.com\onlinesabji.ketinfotech.com\wp-includes\plugin.php(484): WP_Hook->do_action(Array)
#11 G:\PleskVhosts\ketinfotech.com\onlinesabji.ketinfotech.com\wp-admin\admin.php(175): do_action('admin_init')
#12 {main}