WP HTTP Error: cURL error 60: SSL certificate problem: unable to get local issuer certificate
WP HTTP Error: cURL error 35: OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to queryfeed.net:443
WP HTTP Error: cURL error 35: OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to queryfeed.net:443
A feed could not be found at http://www.lib.city.nagaoka.niigata.jp/index.php?action=whatsnew_view_main_rss&block_id=1770&display_days=5. A feed with an invalid mime type may fall victim to this error, or SimplePie was unable to auto-discover it.. Use force_feed() if you are certain this URL is a real feed.
WP HTTP Error: cURL error 60: SSL certificate problem: unable to get local issuer certificate