The certificate used to sign the message was issued by a certificate authority that you do not trust for issuing this kind of certificate.
Ri iqitzijib'äl okisan richin nijuch' ri rutzijol elesan ruma jun taqanel iqitzijib'äl achoq chi rij man ta nakuqub'a' ak'u'x chi yerelesaj re ruwäch iqitzijib'äl re'.