Was the alignment done with the worn tires still on the car, or had the tires been changed before the alignment was done?
If the alignment was done with the worn tires, then I can lay money that when the tires are replaced, if the alignment is checked again, it will be out of spec.
So, get the tires replaced, and check the alignment again.
Then see if it can be brought into spec with the new tires.
If it can’t, then have the camber kit installed, and check again.
BC.