nginx: [emerg] BIO_new_file("/usr/local/nginx/conf/ssl/dhparam.pem") failed (SSL: error:02001002:system library:fopen:No such file or directory:fopen('/usr/local/nginx/conf/ssl/dhparam.pem','r') error:2006D080:BIO routines:BIO_new_file:no such file)
nginx: configuration file /usr/local/nginx/conf/nginx.conf test failed