Error Messages of using Digital Signature | e.Firma

Expired certificate	Expired certificate that has exceeded its effective date.
Incorrect password	Invalid password.
Invalid RFC	The RFC of the digital certificate does not match the RFC registered for the signing process.
Invalid signature	It is necessary to upload the files corresponding to Digital Signature or enter the password.
It is not an allowed file	The file entered does not correspond to what is required in the field: .cer or .key as indicated by e.Firma. It is not valid to enter .cer or .key files of digital stamps for electronic invoices, they must be certificates of an advanced electronic signature (e.Firma) issued by the Tax Administration Service, SAT.
Revoked certificate	Certificate is revoked in the status of e.Firma as consulted in SAT.
Root certificate does not belong to a certificate issuer