There is a difference between having your citizenship revoked and canceling your certificate of naturalization. If the United States Citizenship and Immigration Services (USCIS) cancelled your certificate, that doesn’t mean the USCIS cancelled your citizenship. But if the USCIS revokes your citizenship, it will also cancel your certificate of naturalization. Your certificate must’ve been illegally obtained or created in order for the USCIS to cancel it. For example, maybe an immigrant received a certificate without actually going through the naturalization process.