It is because the online signature was not recognized by the system in the process of handling, and it needs to be re-signed with neat handwriting.

There are three main reasons for the frequent decline of company signatures.

The first point is that a large number of applications are signed on an enterprise certificate, or the installed capacity is too large and easy to be detected by the system. If illegal operation is found, the certificate will be revoked in minutes.

The second point is that the illegal application in the certificate signing application is reported, and some individuals or small studios sign everything regardless of the type of signing application, so if the illegal application is reported, the enterprise certificate will also be revoked.

The third point is the certificate itself. After the certificate expires, the application signed by the enterprise cannot be used.