Contributor License Agreements (CLAs) for CNCF.
If you encounter any problems signing the CLA, log a ticket with the Linux Foundation ID group through the Linux Foundation Support Site.
Should you have any issues using the LF Support Site, send a message to the backup e-mail support address login-issues@jira.linuxfoundation.org
Someone from the LF/CNCF will respond to your ticket to help.