The failure to confirm the parameters of special ticket authentication signature is due to system failure. After the invoice is issued, it will be automatically uploaded through the network. When uploading, the tax digital certificate will add a digital signature to the electronic invoice, and the signing process failed. This is caused by non-human factors, and the failure of the tax bureau's inspection system will lead to the failure of inspection, which is rare, but at present it is inevitable that the failed invoice must be invalidated and reissued.