what does that limit and stop price indicate here? why does the stop price have to be $0.01 above the ask price

ULUUN TUIV VBIV - Vbi Vaccines Inc Com New 3.215 x 100 0.44 (16.06%) As of 11:00 AM EDT 07/07/20 6.99M Bid 3.21 x 100 Ask 3.22 x 6700P Quantity Order Type Buy 1 Price Type Stop Limit on Quote Limit Price $3.20 Stop Price $3.23 Term Good for 60 Days All-or-None (if 300+ shares) Advanced Order Good for 60 Days Disclaimer - Exchange Key Save order Preview