A drops. Isaac dies and rises as Dark Judas — 2x damage, but still frail. He reaches It Lives in under 25 minutes, unlocks Hush door, kills Hush with one heart left.
The string appears to be a partial Title ID or unique identifier typically associated with software files, specifically for The Binding of Isaac: Repentance on the Nintendo Switch . The Binding of Isaac Repentance -01009CD0167E20...
The error -01009CD0167E20 indicates a stuck pointer in the game's stack. To reset it: A drops