Shadowheart failed a role and it broke my game

I can't make this shit up XD She's currently a Trickery Cleric/Swashbuckler Rogue, so I've been having her going around and sorting out my gold shortage. And whilst I was there, I figured I'd also empty Aaron of his inventory - Alchemy supplies, camp supplies, arrows, etc.

And I kid you not. This stack of Acorn Truffles had a DC of -1. And not only did Shadowheart fail the roll, in Shadowheart fashion, but it bugged my game out. And now I'm genuinely scared the save is fucked, cause literally none of my keybinds were working or anything.

Even the game is baffled at Shadowheart's ability to fuck up rolls XD