Error after launching Launchbox - 7.6 beta 3

[Former user]

Value cannot be null.
Parameter name: key

Type:   System.ArgumentNullException
Site:   Boolean ContainsKey(TKey)
Source: mscorlib 7.7-beta-3

   at System.Collections.Concurrent.ConcurrentDictionary`2.ContainsKey(TKey key)
   at (DataManager , String )
   at Unbroken.LaunchBox.Data.DataManager.LoadGames(String filePath)
   at (DataManager , Boolean , Boolean )
   at Unbroken.LaunchBox.Data.DataManager.Load(Boolean settingsOnly, Boolean forceReloadAll)
   at Unbroken.LaunchBox.Data.DataManager..ctor(Boolean bare, Boolean settingsOnly)
   at (String[] )
   at Unbroken.LaunchBox.Desktop.Program.Main(String[] args)

I can't Launch now and am concerned about my games database, which took hundreds of hours to set up.

[Jason Carr]

Hi Anonymous, this was fixed in a previous beta. You can just install the latest beta over top of your existing collection and you should be good to go.