Attachments Help with Craftsman V60 - grass bag attachment bar came off

OK, so this was basically my first mowing experience in over a decade. Pardon me if my vocabulary is not correct, hopefully the pictures will help explain. So about two minutes into mowing, the bar that you hook the grass bag to came unattached on the right side. I took the bar out and a spring came off as well. Does anyone know where I should put this spring and if I should be looking for another part?

https://i.imgur.com/3i9HdmF.jpg

https://i.imgur.com/C3IuPhe.jpg

https://i.imgur.com/rGIMlvM.jpg

Edit: so I'm pretty sure the spring goes here and fits into that opening on the left side. https://i.imgur.com/XmguC2D.jpg
But it still won't remain attached. Should there be an attachment/bolt on the right side of the bar like you see on the left side? I wonder if that came off?

The push nut is missing from the other end of the rod.

Romore said:

The push nut is missing from the other end of the rod.

Click to expand...

Are you absolutely sure that there should be a push nut at the other end? If so, this whole thing was poorly assembled from the get-go. Look how much little space there is on the other end. https://i.imgur.com/PAArDKN.jpg Do they even make push nuts that thin? The other end of the rod has plenty of room. https://i.imgur.com/b7dVfRI.jpg . Maybe I should just remove that push nut and put two new ones on both ends? Would have been better if they made the rod just a tad longer to account for margin of error

Edit: Destroyed the push nut that it came with (not easy, cant imagine something like that just falling off it were correctly assembled) put two new split washers i found in my dad's workshop on each end which just barely fit -- would have been a lot easier if the rod was just 1/16 inch longer. But seems secure now. Thanks