navigate to the following directory: ConfigID/saves/Saved/SaveGames Note: You can find the ConfigID or ConfigurationID for your server on our site under Gameserver. For example, if your ConfigID was 123456, it would look like this:/123456/saves/Saved/SaveGames.
delete the existing ServerSettings file. The ending of the file corresponds to the game port of your server.
start your server. You will have to reclaim your server. We describe how to do this here: How to play on my server
now click on Manage savegames and load the latest savegame
now click on Status. When the game has been loaded, click on Join game