https://www.ravelry.com/projects/BrendaJae/cardigan---little-rosie
Hello
Unfortunately it looks like you got the shaping rows in the wrong place.
I can’t see on the pattern photo which side you started picking up the stitches for the band so I might get this back to front, but you can perhaps make sense of it.
170 stitches (after pick up and increases and before rib row 1)
The rib is going to eventually work the full length up the front across the back neck and down the other front side. The deeper rib will be central in the back of neck like a higher collar.
The rib begins at one bottom edge and works up to centre neck, that’s half of 170 stitches, so 85 (maybe put a stitch marker here to help keep the shaping central) and then you continue another 12 stitches beyond the centre marker. This is the row 1 rib 97 instruction (85+12=97).
Then wrap and turn.
Row 2 work 24 stitches, this is 12 you just worked up to the centre marker and 12 beyond the marker.
Wrap and turn
Row 3 work 27, this is the 12 to the marker, the 12 previously worked past the marker AND another 3 stitches. The rows are increasing in length by 3 each time (15 on this side of the marker).
Wrap turn
Row 4 work rib 30. This is the 15 just worked up to the marker, and 15 beyond the marker (12 previously worked and 3 more)
Wrap turn.
Does this help?
For what it’s worth I really love the shaping you have put in, it looks fab. But if you want the cardigan in the pattern I’m afraid there is some ripping or tinking to do and re working.