Hi, it looks like for the save you posted; there were 2 letter D's at the end of the savefile.
I removed those, and the game loads & saves now.
However, I noticed 2 things. The health bar seems to have been modded to be huge. I left that alone, since I'm guessing that was intentional.
And, I also noticed the error log you shared; seems to be for a different error.
As the column number should be larger, and the error displayed is more of a typo for a number section; than an end of the save bug.
Which is fine, but I'm pretty sure it's just an older, unrelated, error log.
That means your save should be fine with my fix. I tested loading & saving to the next game day with a copy, and it seemed alright on my end.
But, let me know if anything comes up.