500 SSL Peer Certificate Untrusted

SSL handshake with store.royalcupcoffee.com:443 failed: SSSLERR_PEER_CERT_UNTRUSTED (-102)

The peer's X.509 Certificate (chain) is untrusted

SapSSLSessionStartNB()==SSSLERR_PEER_CERT_UNTRUSTED
  SSL:SSL_read() failed  (536872221/0x2000051d)
  => "Failed to verify peer certificate. Peer not trusted."
  SSL:SSL_get_state()==0x2131 "TLS read server certificate B"
  SSL NI-hdl 404: local=10.41.52.38:59972  peer=52.54.147.48:443
  cli SSL session PSE "/usr/sap/PU1/DVEBMGS01/sec/SAPSSLC.pse"
  session ciphersuites=150:PFS:HIGH:MEDIUM::EC_P256:EC_HIGH
  Client SSL_CTX 7f2a10073220 pvflags=896 (TLSv1.2,TLSv1.1,TLSv1.0)
  Target Hostname="store.royalcupcoffee.com"
>> ---- SecuSSL ErrStack: ----
0x2000051d | SAPCRYPTOLIB | SSL_read
SSL API error
Failed to verify peer certificate. Peer not trusted.
0xa0600203 | SSL | ssl3_read_bytes
Peer not trusted
0xa0600203 | SSL | ssl3_connect
Peer not trusted
0xa0600203 | SSL | ssl3_get_server_certificate
Peer not trusted
0xa0600203 | SSL | ssl3_decode_server_certificate
Peer not trusted
0xa0600203 | SSL | ssl_verify_peer_certificates
Peer not trusted
0xa0600203 | SSL | ssl_cert_checker_verify_certificates
Peer not trusted
0xa0600203 | SSL | ssl_cert_checker_verify_certificates
Peer not trusted
Certificate:
 Certificate:
  Subject:                              CN=*.royalcupcoffee.com, OU=IT, O=Royal Cup, L=Birmingham, SP=Alabama, C=US
  Issuer:                               CN=Entrust Certification Authority - L1K, OU="(c) 2012 Entrust, Inc. - for authorized use only", OU=See www.entrust.net/legal-terms, O="Entrust, Inc.", C=US
  Serial Number:                        24:D3:6D:FA:82:66:7B:67:D5:86:31:07:79:70:99:A2
 Verification result:
  Status:                              Not successful
  SignerStatus:                        Not successful
  SignerVerificationResult:
   Status:                              Not successful
   Validity:                            Successful
   BasicConstraints:                    Successful
   KeyUsage:                            Successful
   ObjectStatus:                        Not successful
   SignerCert:
    Certificate:
     Subject:                              CN=Entrust Certification Authority - L1K, OU="(c) 2012 Entrust, Inc. - for authorized use only", OU=See www.entrust.net/legal-terms, O="Entrust, Inc.", C=US
     Issuer:                               CN=Entrust Root Certification Authority - G2, OU="(c) 2009 Entrust, Inc. - for authorized use only", OU=See www.entrust.net/legal-terms, O="Entrust, Inc.", C=US
     Serial Number:                        0E:E9:4C:C3:00:00:00:00:51:D3:77:85
    Verification result:
     Status:                              Not successful
     SignerStatus:                        Not successful
     SignerVerificationResult:
      Status:                              Not successful
      Validity:                            Successful
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