It keeps saying that there are no active public raffles!
Then, as the text says, there are no raffles available at this moment. You will have to wait until someone makes a new/another one in order to see it and join.
Trade Offer
Auto-Sell Hats
Automatically sell up to 100 of your eligible hats at once.
Don't worry: we won't take special items, including painted, low craft numbers, special levels, spells, killstreaks, etc.
Autosell Cards
Automatically sell up to 1,000 of your eligible cards at once.