The pattern for the ears is missing, and text also includes optional extra Leg pattern. Ears can be made as follows:  

Ears

With B, chain 9.

Row 1: In 2nd ch from hook, 1 dc, 1 htr, 3 tr, 1 htr, 1 dc, 3 dc into next st, continue to work into other side of foundation chain, 1?dc, 1 htr, 3 tr, 1 htr, 1 dc in last st, sl st into first st to join. Fasten off yarn.    

Zigga Cardigan

Row 1 of the back should read as follows:  

Row 1 (RS): Starting in the 4th ch from hook, 4 tr, [2 ch, miss 2 ch, 5 tr] 5 (6, 7, 8, 9) times, 12 tr,[5 tr, 2 ch, miss 2 ch]5 (6, 7, 8, 9) times, 5 tr. Turn.    

To report any further issues with patterns in issue 1, please contact the editor at hugh.metcalf@practicalpublishing.co.uk