Hello , i have a Problem with my V2.0

i become this :


Message: Class 'FlyingFleetsTable' not found
File: /includes/pages/game/ShowOverviewPage.class.php
Line: 71
URL: localhost/wogtest/game.php?page=overview
PHP-Version: 7.2.30
PHP-API: apache2handler
2Moons Version: 2.0.git
Debug Backtrace:
#0 /includes/pages/game/ShowOverviewPage.class.php(290): ShowOverviewPage->GetFleets()
#1 /game.php(57): ShowOverviewPage->show()
#2 {main}

I am trying to install the following mod:2moons.de/upload/endlessuni-alliance-system.zip


Can everybody help me ?