Fatal error: Uncaught Error: Class 'WPMedia\BackWPup\Dependencies\League\Container\Definition\Definition' not found in /home/bunka002/bunka.ac.jp/public_html/bnk/wp-content/plugins/backwpup/src/Dependencies/League/Container/Definition/DefinitionAggregate.php:30 Stack trace: #0 /home/bunka002/bunka.ac.jp/public_html/bnk/wp-content/plugins/backwpup/src/Dependencies/League/Container/Definition/DefinitionAggregate.php(40): WPMedia\BackWPup\Dependencies\League\Container\Definition\DefinitionAggregate->add('event_manager', Object(Closure)) #1 /home/bunka002/bunka.ac.jp/public_html/bnk/wp-content/plugins/backwpup/src/Dependencies/League/Container/Container.php(78): WPMedia\BackWPup\Dependencies\League\Container\Definition\DefinitionAggregate->addShared('event_manager', Object(Closure)) #2 /home/bunka002/bunka.ac.jp/public_html/bnk/wp-content/plugins/backwpup/src/Plugin/Plugin.php(181): WPMedia\BackWPup\Dependencies\League\Container\Container->addShared('event_manager', Object(Closure)) #3 /home/bunka002/bunka.ac.jp/public_html/b in /home/bunka002/bunka.ac.jp/public_html/bnk/wp-content/plugins/backwpup/src/Dependencies/League/Container/Definition/DefinitionAggregate.php on line 30