ChatGPT History Search

Installed ChatGPT History Search. Can't get its cross-conversation search to work.

I enabled Developer Mode in Chrome Extensions and I saw the updation occurring, and I watched the video (unfortunately, it went fast and had no audio) but I can't find anything when I click the little chat-icon. The 2 little arrows keep circling, but no search-hits are shown and next to the arrows, it shows "0/0". I'm searching "Kannada", which is a word that occurred in a recent conversation.

I'll pay for this extension, but first I want to see it work!