Please help? Parents' washing machine stained the pits of all my bras

Is there any way I can fix these stains and get my clothes back to normal? I really hope so!! One is a normal bra and two are sports bras.

I don't think it's the deodorant I use, because my deodorant isn't white and because I've been using the same one for years and washing bras in my own machine with no problem.

I did the same exact thing at my parents house as I do in my own apartment, which is why I think something from the washer must have ruined it. Like maybe the washer was dirty and there was some chemical reaction? I always use tide detergent and wash on cold, then air dry.

I'm pretty disappointed especially because those sports bras are not cheap and one of them is only two months old and now stained white at the arm pits :(