{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How should errors be handled during the blockchain upgrade process?","a":"Develop a repair plan: According to the cause of the error, develop a corresponding  repair plan. The repair plan should include detailed repair steps, required resources, and expected completion time."}]}],"pr":"9965cc8915122c5372e51f41b2739fcd058f5e49f6142f86165e442cbc719b02"}