constant crashing

hello, ive recently been having this error crashing my launchbox, it happens when im scrolling the games list and causes launchbox to close. its been getting slower while scrolling for a while now...should i reinstall ?

using windows 7, latest version of launchbox,8gb ram

System.NullReferenceException: Object reference not set to an instance of an object. at (VlcPlayer , IntPtr , IntPtr ) at Meta.Vlc.Wpf.VlcPlayer.VideoDisplayCallback(IntPtr opaque, IntPtr picture)