Banged my head against the way for a fair time with this error on my CENTOS (could have been RHEL or Fedora) laptop - was simple in the end!
Error
“you have chosen not to trust “verisign class 3 public primary certification authority – G5” SSL error 61
Scrolled down to “verisign class 3 public primary certification authority – G5”
Right clicked on download now (.pem file)– saved to /opt/Citrix/ICAClient/keystore/cacerts
This fixed it :>
