When "Certificate does not exist" is displayed, you need to apply for a new certificate, specifically: sealed copy of business license+user registration affairs opinion. At that time, I filled in "the format of the certificate backup is wrong, which makes it unusable on other computers. The original computer has been formatted and cannot be re-exported. Therefore, it is requested to reissue the digital certificate. " It was sent to the acceptance office in China National Intellectual Property Administration.
After receiving the documents, the National Information Bureau will issue a new card soon, and it will be completed in a day or two. Log in to your e-application account more frequently. Download and install a new certificate.
One more step is needed: there is a column "change certificate authority" in the account, select the original certificate DN and the changed DN, and download the notice in the CPC system after the change.
Through these processes, you can reuse the electronic application system.