My level 113 character disappeared after my PC restarted from a crash.

What happened was, I unlocked the secret lower level map in the Desert Temple mission. After completing this mission, my PC crashed. After my PC restarted, I logged back into the game and my level 113 character vanished. I could only see my other characters (level 8 and 15). I restarted my PC several times, hoping my level 113 character would reappear, but no luck.