All those numbers look right to me, just the product of small sample sizes. Here's some explanations.

He has pitched 1 1/3 IP in the past 7 days and hasn't issued a walk in those IP. So his CTL is 0, CMD (K / BB) has a zero in the denominator, so is undefined, which we display as zero. He also hasn't given up an HR in those 7 days so his HR / 9 is zero. His DOM is 20 because 3 K in 4 /3 IP extrapolates to 20 K per 9 IP. xERA is zero because it has a term that is divided by FB and he has not allowed an FB in the past 7 days.