Fatal error: Uncaught TypeError: Argument 1 passed to WP_Translation_Controller::set_locale() must be of the type string, null given, called in /home/kurazume-lab/www/kurazume/wp/wp-includes/l10n.php on line 803 and defined in /home/kurazume-lab/www/kurazume/wp/wp-includes/l10n/class-wp-translation-controller.php:87
Stack trace:
#0 /home/kurazume-lab/www/kurazume/wp/wp-includes/l10n.php(803): WP_Translation_Controller->set_locale(NULL)
#1 /home/kurazume-lab/www/kurazume/wp/wp-includes/l10n.php(1015): load_textdomain('qtranslate', '/home/kurazume-...', NULL)
#2 /home/kurazume-lab/www/kurazume/wp/wp-content/plugins/qtranslate-xt-master/qtranslate_core.php(530): load_plugin_textdomain('qtranslate', false, 'qtranslate-xt-m...')
#3 /home/kurazume-lab/www/kurazume/wp/wp-content/plugins/qtranslate-xt-master/qtranslate_core.php(117): qtranxf_load_plugin_textdomain()
#4 /home/kurazume-lab/www/kurazume/wp/wp-includes/class-wp-hook.php(324): qtranxf_init_language('')
#5 /home/kurazume-lab/www/kurazume/wp/wp-includes/class-wp-hook.ph in /home/kurazume-lab/www/kurazume/wp/wp-includes/l10n/class-wp-translation-controller.php on line 87
Fatal error: Uncaught TypeError: Argument 1 passed to WP_Translation_Controller::set_locale() must be of the type string, null given, called in /home/kurazume-lab/www/kurazume/wp/wp-includes/l10n.php on line 803 and defined in /home/kurazume-lab/www/kurazume/wp/wp-includes/l10n/class-wp-translation-controller.php:87
Stack trace:
#0 /home/kurazume-lab/www/kurazume/wp/wp-includes/l10n.php(803): WP_Translation_Controller->set_locale(NULL)
#1 /home/kurazume-lab/www/kurazume/wp/wp-includes/l10n.php(959): load_textdomain('default', '/home/kurazume-...', NULL)
#2 /home/kurazume-lab/www/kurazume/wp/wp-includes/class-wp-fatal-error-handler.php(49): load_default_textdomain()
#3 [internal function]: WP_Fatal_Error_Handler->handle()
#4 {main}
thrown in /home/kurazume-lab/www/kurazume/wp/wp-includes/l10n/class-wp-translation-controller.php on line 87