Sonarr / SABNZBD Certificate Failure

Apr 17 23:31:08 server01 mono[1406]: [v3.0.1.441] NzbDrone.Core.Download.Clients.DownloadClientUnavailableException: Unable to connect to SABnzbd, please check your settings ---> System.Net.WebException: Error: TrustFailure (Authentication failed, see inner exception.): 'https://server01:8080/sabnzbd/api?mode=get_config&apikey=c853214a1ea03fec295cf0915e43cba3&output=json' ---> System.Net.WebException: Error: TrustFailure (Authentication failed, see inner exception.) ---> System.Security.Authentication.AuthenticationException: Authentication failed, see inner exception. ---> Mono.Btls.MonoBtlsException: Ssl error:1000007d:SSL routines:OPENSSL_internal:CERTIFICATE_VERIFY_FAILED
Apr 17 23:32:39 server01 mono[1406]: [Error] X509CertificateValidationService: Certificate validation for https://server01:8080/sabnzbd/api?mode=addfile&cat=tv&priority=1&apikey=6f115bf99fed12f670b1e636c215d310&output=json failed. RemoteCertificateChainErrors