Because you do not trust the certificate authority that issued this certificate, then you do not trust the authenticity of this certificate unless otherwise indicated here
Mar nach bhfuil aithne agat ar an údarás teastais a d'eisigh an teastas seo, níl muinín agat as fordheimhniú an teastais seo ach amháin má léiríonn tú a mhalairt anseo.