It should be that you left out some items, or the items were not standardized and did not fill in as required. Of course, the audit system of the platform sometimes goes wrong. If you carefully read the terms of the signature requirements and fail, it means that there is something wrong with the computer audit, and it should be successful to fill them out again after a few hours. If there are no problems in the inspection, the e-cert may have expired. Call customer service to ask.

After handling a new e-certificate, you should download the certificate again and delete the original expired certificate (in IE settings? Content? Certificate, you can see the validity period of the old and new certificates. Then it can be used normally.

Electronic signature is actually a string of data or code, which can show the real identity of the signer. China electronic signature method