{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How should errors be handled during the process of upgrading a blockchain version?","a":"Develop a repair plan: After understanding the cause of the error, the development team should promptly develop corresponding repair  plans, including code modifications, vulnerability fixes, etc."}]}],"pr":"dd676ab5e1e10758a381b7a2b302b66f78b6a447f48bc946f4f9d805cb2e13b3"}