Good news for our family! I did send an email to the "gratefulness" web team, and they very graciously responded. They explained the reasons for needing to revise the candle site and altering the group pages. Unfortunately, there was malicious misuse of the group pages, plus the "architecture" of the site was breaking down so that the group candles were not displaying properly. In addition, though, they sent these suggestions for informally creating a group page for ourselves. I haven't yet tried it, but I am thinking that we can just continue to use "K9C" as our acronym. So what they are suggesting is to embed the acronym in the text of each of our messages, so that we can then search out all candles for our group. Here is what they wrote:

We recognize that part of what is important to many people who appreciated the groups is a sense of community. As such, we offer the following way to informally make a “group” so that you can continue to connect with others through the candles:

Commit to using a word that you all agree to inside the message (best to use an unusual word or an acronym associated with your “group” rather than a commonly used word like “prayer,” “love,” or “grateful”).

When looking for your group's candles, search on the word you have chosen in the search field in the upper right hand side of the page.

All candles with messages containing that word will show. It is then possible to open the candles to read the messages.

After opening a candle within the group, use the back arrow to return to the group rather than clicking on "Back to Candles."
This way you can dip in and out of your "group" and also quickly see how many candles are lit.

We hope that you and others in your group will continue to use the candles and find them a source of great comfort and healing throughout your journeys.

With kindness,

The Gratefulness Webteam
I told them how much their candles have meant to our family, and thanked them for providing the site to us all. I am anxious to try lighting a candle using their instructions, so I will do so in a little while!