[Plugin: Hierarchical Documentation] Warning: Creating default object from empty value

I have been using Hierarchical Documentation for some time and it developed a problem so I deleted the whole Wamp area and did a fresh load of everything
Still the same problem..???

Warning: Creating default object from empty value in C:\wamp\www\Testing\wp-content\plugins\wp-mvc\core\controllers\mvc_controller.php on line 110

# Time Memory Function Location
1 0.0018 183584 {main}( ) ..\admin.php:0
2 0.5967 13732400 do_action( ) ..\admin.php:151
3 0.5968 13733368 call_user_func_array ( ) ..\plugin.php:403
4 0.5968 13733704 MvcDispatcher->__call( ) ..\plugin.php:0
5 0.5968 13733704 __lambda_func( ) ..\mvc_dispatcher.php:69
6 0.5968 13734072 MvcDispatcher::dispatch( ) ..\mvc_admin_loader.php(88) : runtime-created function:1
7 0.6115 13765032 MvcController->init( ) ..\mvc_dispatcher.php:17
8 0.6135 13777304 MvcController->load_helper( ) ..\mvc_controller.php:46

https://www.ads-software.com/extend/plugins/hierarchical-documentation/