It should be because you have problems verifying your identity in CCB, resulting in your service being suspended. Maybe your original registered ID card has expired, or your registered identity is not clear. Generally speaking, credit cards are handled with new ID cards. In this case, it is very likely that the CCB savings card you transferred out was processed earlier, using an old ID card, or the ID card has expired. If so, you can take your current ID card and bank card to the counter of any CCB outlet in the country to verify your identity information, and then you can resume normal use. When this error code appears, there should be a Chinese prompt next to it, that is, "8442ZX20000 1 identity information not verified".