Fatal error: Cannot redeclare wp_update_https_detection_errors() (previously declared in /home/c4541921/public_html/artcenter.link/wp-includes/https-detection.php:104) in /home/c4541921/public_html/artcenter.link/wp-includes/deprecated.php on line 5978

Fatal error: Uncaught Error: Call to a member function set() on null in /home/c4541921/public_html/artcenter.link/wp-includes/l10n.php:806 Stack trace: #0 /home/c4541921/public_html/artcenter.link/wp-includes/l10n.php(900): load_textdomain('default', '/home/c4541921/...', 'ja') #1 /home/c4541921/public_html/artcenter.link/wp-includes/class-wp-fatal-error-handler.php(47): load_default_textdomain() #2 [internal function]: WP_Fatal_Error_Handler->handle() #3 {main} thrown in /home/c4541921/public_html/artcenter.link/wp-includes/l10n.php on line 806