And what files exactly in flotilla are handling these things:

1) Your app may not be resubscribing after a refresh or session timeout. Try explicitly closing old subscriptions and re-opening them

2) If relays become unresponsive, you might need a retry mechanism

3) Relays may be timing out too soon. Try increasing the connection timeout

4) If old events load from IndexedDB but not the relay, try forcing a fetch