Error has a destructive personality, he was cold and a maniac, but once he found out that his wife died at the hands of his enemies, he was angered, he was filled with sorrow and guilt that he wasn’t there in her last moments. He loved her and would kill for her, Luckily he had Voodoo magic. So he made a puppet version of his wife and placed a few of her remains and cast the spell. It worked. Error was a villain but he has a soft spot for his wife and would sacrifice the world for her.