Yes that the extruder hits the lever is normal. But when you put the printing job in pause and restart. The extruder pulls the lever towards the front instead of pushing it.
It would help to get a picture of the toolhead and the lever arm from the back side when it is paused. Not from the front like this picture.
Is the toolhead snagging on the lever or is it doing a very aggressive Y-axis move and smacking the lever.