2nd row: K1. (Work 2nd row of Panel Pat. K2) 4 times
K1. (Knit the knit sts and purl the purl sts as they appear K2) 4 times
3rd row: K1. (Work 3rd row of Panel Pat. K2) 4 times
K1 (1 st) *C4B P2 K4 P2 C4F K2 (18 sts), rep from 4 times
(18 * 4 = 72)... 1 + 18 + 18 + 18 + 18 = 73
The pattern does work. I think perhaps you are leaving out the k2 that have been added to the repeat in the instructions, and I suspect that you have missed the stitches in blue in the two rows before this point as well.
So as much as you probably will not want to hear this, I would suggest that the best way to move forward is to unpick the last two rows and start the pattern again.
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