You're referring to a popular hack-and-slash action RPG, Diablo 2: Lord of Destruction (LoD)!
A dedicated community member, often referred to as a "dev" or "programmer," took it upon themselves to create a fixed version of the Hero Editor, compatible with the 1.14d patch. This updated editor ensured that players could continue to modify their characters without encountering errors or compatibility issues.
Do you have a favorite character build or experience with the Hero Editor in Diablo 2: LoD?