Fatal error: Uncaught TypeError: Return value of Composer\Autoload\ClassLoader::initializeIncludeClosure() must be an instance of Composer\Autoload\void, none returned in /home/koshu-ya/japan-store.tokyo.jp/public_html/wp-content/plugins/wp-maintenance-mode/vendor/composer/ClassLoader.php:580
Stack trace:
#0 /home/koshu-ya/japan-store.tokyo.jp/public_html/wp-content/plugins/wp-maintenance-mode/vendor/composer/ClassLoader.php(112): Composer\Autoload\ClassLoader::initializeIncludeClosure()
#1 /home/koshu-ya/japan-store.tokyo.jp/public_html/wp-content/plugins/wp-maintenance-mode/vendor/composer/autoload_real.php(26): Composer\Autoload\ClassLoader->__construct('/home/koshu-ya/...')
#2 /home/koshu-ya/japan-store.tokyo.jp/public_html/wp-content/plugins/wp-maintenance-mode/vendor/autoload.php(25): ComposerAutoloaderInit77642f81597d409e49cb541bea42a649::getLoader()
#3 /home/koshu-ya/japan-store.tokyo.jp/public_html/wp-content/plugins/wp-maintenance-mode/wp-maintenance-mode.php(92): require_once('/home/koshu-ya/...')
#4 /home/kosh in /home/koshu-ya/japan-store.tokyo.jp/public_html/wp-content/plugins/wp-maintenance-mode/vendor/composer/ClassLoader.php on line 580