Hi Judy,
The Roku Forums have been retired and migrated over to the new Roku Community. You will now simply use your Roku User account to log into the Community. Roku Forums accounts are no longer valid. We had messaged users beginning in May with requests to update your previous Forums account information, but this wasn't required to continue using the new Community. Just simply log in with your Roku User account by clicking 'Sign in' in the top righthand corner of the Community.
If you need help signing in, please visit the Community Help content here and reference the Getting Started category: https://community.roku.com/t5/help/faqpage
Thanks,
Tanner