Sora was a road group for most of its existence. A newbie posts looking for help and gets 15 posts about how he asked the question wrong. You guys are NOT helpful.
Shimano road levers have a floating cable stop in them so you can get the cable in despite the shifting mechanism that would otherwise be in the way. Once the cable is in you need to confirm that this barbell shaped piece is horizontal and seated correctly.
Otherwise, is the housing seated correctly on the other side of the lever?