Greenland airport SFJ causing problems
I've noticed a few trips that have failed recently have included (SFJ) Kangerlussuaq, Greenland. When I remove it, I'm able to get prices. on a route.
SJF has several scheduled routes to it but they are mostly in Greenland. One route to Cophehagen. Indie does not know how to connect this airport to major hubs, so I removed the airport from displaying for now.
I managed to get a price back from Indie by adding Reykjavik as a stop before and after SFJ. You might also be able to do it with Copenhagen airport if that makes more sense to the routing.