Fatal error: Cannot redeclare wp_get_global_styles_custom_css() (previously declared in /home/milimouc/domains/milimou.com/public_html/wp-includes/global-styles-and-settings.php:247) in /home/milimouc/domains/milimou.com/public_html/wp-includes/deprecated.php on line 6321

Fatal error: Uncaught Error: Class 'WP_Translation_Controller' not found in /home/milimouc/domains/milimou.com/public_html/wp-includes/l10n.php:801
Stack trace:
#0 /home/milimouc/domains/milimou.com/public_html/wp-includes/l10n.php(960): load_textdomain()
#1 /home/milimouc/domains/milimou.com/public_html/wp-includes/class-wp-fatal-error-handler.php(49): load_default_textdomain()
#2 [internal function]: WP_Fatal_Error_Handler->handle()
#3 {main}
  thrown in /home/milimouc/domains/milimou.com/public_html/wp-includes/l10n.php on line 801