Return of Reckoning

Hi, new here... Ive done a few searches on this one and it seems the fix for some was move game files out of Program Files folder into C:/ROR folder and make sure read only is unchecked. I did that and I still get this error pop-up when I launch. Any ideas?

Error: System.IO.EndOfStreamException: Unable to read beyond the end of the stream.
at System.IO.BinaryReader.FillBuffer(Int32 numBytes)
at System.IO.BinaryReader.ReadUInt32()
at WarZoneLib.MYP.MFTHeader.P5AIv6mEaSEMXqRmGy9(Object )
at WarZoneLib.MYP.MFTHeader.Load(BinaryReader reader)
at WarZoneLib.MYP.awtlN5RYRK0q632KX0(Object , Object )
at WarZoneLib.MYP..ctor(String fileName, FileAccess access)
at WarZoneLib.MYPManager.Get(MythicPackage archive)
at RoRLauncher.Client.HknXgX8I1CQ3FVY7npS(MythicPackage archive)
at RoRLauncher.Client.Handle(PacketIn packet)
at RoRLauncher.Client.IkaEZ48iD826NFTu0BH(Object )
at RoRLauncher.Client.OnReceive(PacketIn packet)
at RoRLauncher.Client.rSN1Kf8QdDryQ7nW8sU(Object )
at RoRLauncher.Client.YFLZyjs0vm(Object )