HCL migrated the support forums from the old community where you also created support tickets, to the new website used for other community functions. All of the data has been brought over. You may need to create a new login if you haven’t already accessed the new website.
New site: https://developer.ds.hcl-software.com/

The Former site: https://support.hcl-software.com/csm?id=csm_index
You still visit this former site to create tickets with HCL technical support.

Don’t feel like you need to remember all of this? Just come here to my blog and click the Essential Notes/Domino Links link on the right-hand side or bookmark the short URL.