make sure the handbrake cable is fully backed off, then click the brake shoe adjusters out a click at a time using a couple of large screw drivers levering against the hub,(basically like how the brake cylinder applies the brakes) then try the drum on, aim for the drum going on so that you can just feel the shoes very lightly contacting the drum, but not so that its like the brakes are on

repeat for the other side then take the slack outta the handbrake cable

you may have another fault