{"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":"96d0866dc94ca1a39148c142c3c44fb4f1f25a4027f6cb7fd3293559237367af"}