Could a 'fatal error' in 'Sans vs. Wiki Sans' refer to a lore-breaking event?

Yes, it's plausible that a 'fatal error' in the context of 'Sans vs. Wiki Sans' could refer to a lore-breaking event or a concept that fundamentally undermines the established narrative or characterization of Sans. This might happen if a fan-made interpretation ('Wiki Sans') contradicts or invalidates core aspects of the original Sans from Undertale, causing a conceptual 'crash'.