Reciva.com says "Notice: With effect from 30th April 2021 this website will be withdrawn. Please refer to your radio manufacturer or supplier."
When Reciva.com ceases to function, radios that depend on this service will no longer be able to search for radio stations. Saved presets will continue to work until the radio station changes its streaming URL.
Grace Digital is offering discount coupons to upgrade to a new radio, suggest that you throw your old radio in the trash.
There are people looking for workaround to keep these no-longer-supported radios working. I’ll update this guide as I learn more.