Fatal error: Uncaught Error: Cannot use object of type WP_Error as array in /home/maronie/maronie.ac.jp/public_html/wp-content/themes/marronnier/functions/calendar.php:265 Stack trace: #0 /home/maronie/maronie.ac.jp/public_html/wp-content/themes/marronnier/functions/calendar.php(85): get_holidays('2020-04', '30') #1 /home/maronie/maronie.ac.jp/public_html/wp-content/themes/marronnier/single-event.php(248): shortcode_my_calendar('2020', '04') #2 /home/maronie/maronie.ac.jp/public_html/wp-includes/template-loader.php(77): include('/home/maronie/m...') #3 /home/maronie/maronie.ac.jp/public_html/wp-blog-header.php(19): require_once('/home/maronie/m...') #4 /home/maronie/maronie.ac.jp/public_html/index.php(17): require('/home/maronie/m...') #5 {main} thrown in /home/maronie/maronie.ac.jp/public_html/wp-content/themes/marronnier/functions/calendar.php on line 265