Lululemon lab cupro romper

Lululemon lab cupro romper from approx 2019 can’t find the size dot but I normally wear a size 4 up top and 6 on bottoms in Lululemon and this fits perfectly In like new condition except for behind the drawstring (at the belly button) the seam has come loose - see photos. Could be repaired but I don’t wear it anymore so never bothered