When I start LRT Timelapse I am told there's a new version of Adobe DNG Converter. I click "Yes to download but it keep giving me an error that the connection was lost. How else can I get the download to work, I'm using a MacBook Air, M2? Thanks

The Dng converter downloads directly from Adobe. On https://LRTimelapse.com/install you'll find links to the downloads at Adobe. There is an alternative link to adobes FTP there also.
Since Adobes site sometimes behaves a bit weird you might also want to try another browser or the browser in private mode. Let me know if you get it going.