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Try turning it Off for 10 minutes, and restart the computer you are scanning to in the meantime.
(Try that just once, in case that's all it needs. If it doesn't help the first time, there's no need to try it again.)
The double page feed (without any scanned image being transmitted) might mean either
A. controlling circuitry gone bad in the scanner - an unfortunate time for that to happen if so...
B. a stuck paper position/paper-presence sensor switch, or optical sensor fouled, in the scanner. A double page feed would be sensed when a paper presence sensor failed to register 'no paper here any more' after a bit of feeding in the first sheet... making the scanner presume that the second sheet has fed in with the first.
So check for a paper sensor switch that, when pressed (by the passage of a sheet of paper fed into the scanner) does not spring back readily. Or is jammed or fouled otherwise. Clean all dust out of the paper path of the scanner, in case it is an optical sensor with some dust or paper fluff on it.