Welcome to Apple Support Communities hutao_obsession,
We can definitely understand wanting to download and update apps. If there is a problem with a previous purchase, it would need to be resolved before you can download or update any app in the App Store. Check out this article: If your payment method is declined in the App Store or iTunes Store.
If you need further assistance, you may need to reach out to the billing team at Apple Support. Depending on your region, you may be able to reach out to them here: Get Support.
Have a good one!