In Row 5 of the pattern section, the repeat after slipping the marker only has 9 stitches in each repeat, it should be 10. *k2, yo, k1, sl1, k2tog, psso, k1, yo, k3*
In row 7, the repeat before the the center marker has a k3tog. That should be a k2tog.
Row 10: k2, yo, purl to 1 before the marker, yo, p1, SM, yo, p to last 2, yo, k2.
In row 19 of the pattern, there should be a YO before the last K2.