I said it in an another post. I would guess you are experiencing financial effects from Uber eliminating the area filter and cutting down the destination filter back to 2 per day.
I had not driven since April but gave it a go last 3 days. I can't say I was impressed with my earnings M-W, but did OK during the late morning thru lunch rush. Maybe about 10-12 trips or deliveries between 10am and 1pm. Today...zero. I'll give it a shot one more day, but I'm not expecting anything better.