Unable ot play OffLine

[Stone-6683]

I don’t know how to solve your missing character, but whenever the game crashes the shared stash file always becomes corrupted, preventing you from entering any offline character game.
I was able to fix the second problem for myself, see here:

[SOLVED] "Failed to join game" for offline character after crash

Whilst playing in game, my PC crashed (likely caused by the game itself, however irrelevant). Upon restart, I fired up the game again, and tried to play as that same offline character, and I’m faced with the error “Failed to join game”. Restarting the game does not solve this problem. As someone who has commercial software testing experience I find this absolutely appalling that a AAA game company would release a game without running a test case on restoring the game after a software or hardwar…

EDIT:
I was just reading something and found this link:
https://dschu012.github.io/d2s/

Apparently you can try loading your .D2S there and do a save as D2R and that may bring your character back - it worked for somebody else.