So, the steps

• Utilities –> Terminal, and run those commands

sudo killall -9 trustd
sudo rm -f /Library/Keychains/crls/valid.sqlite3

• Reboot
• Wait 5-10 minutes for the new version to be installed.

To confirm, after reboot, run this:

sqlite3 /Library/Keychains/crls/valid.sqlite3 "select * from admin"

db_version|5|
db_format|3|
db_source|0|valid.apple.com
version|148|
check_again|0|o??????A

source: https://discussions.apple.com/thread/252037712?answerId=254082855022#254082855022

If you recieve the message “The remote SSL peer sent a handshake failure alert” when you try to connect to a citrix session, you can solve the problem by downgrade the citrix receiver to version 12.3 Link

source: https://csus.service-now.com/service/kb?kb=KB0012309