Wu Shuo learned that according to Coingecko data, the ERC-404 sector has fallen sharply in the past 24 hours, with the overall market value falling by 29%, the main target PANDORA falling by more than 15%, DEFROGS falling by more than 22%, RUG falling by more than 38%, etc. ERC-404 is an experimental standard on Ethereum that is a hybrid of ERC-20 and ERC-721 and is not yet part of the final Ethereum Improvement Proposals standard.