You need to assign Widgets to "Shop Sidebar" in Appearance > Widgets to show anything here
$39.90
Baseball Jersey
$38.90
$39.90
Ugly Sweater
$39.90
Crocs
$39.90
Hawaiian Shirt and Short
$34.90
Air Force 1
$0.00
Air Force 1
$0.00
Air Force 1
$0.00
Air Force 1
$0.00
$0.00