Help I 60 years old.....

[rod]

This game worked once now I get this can anyone HELP..
 Stopped working

Problem signature:
  Problem Event Name:   CLR20r3
  Problem Signature 01:   universe sandbox.exe
  Problem Signature 02:   2.2.0.900
  Problem Signature 03:   506b6f4e
  Problem Signature 04:   mscorlib
  Problem Signature 05:   2.0.0.0
  Problem Signature 06:   4ca2b889
  Problem Signature 07:   1b2b
  Problem Signature 08:   c
  Problem Signature 09:   System.IO.FileNotFoundException
  OS Version:   6.1.7601.2.1.0.256.1
  Locale ID:   1033

[Unreal2004]

Have you tried to re-install the program?  Do you have the Steam version or the stand alone version?