If it’s some form of shared washer, run a cup of bleach through a cleaning cycle. If it doesn’t have one, any hot cycle will do, then an extra rinse.
If you somehow don’t have bleach, use a cup of that strong cleaning vinegar stuff, or a couple tablespoons of citric acid. But please do not even think about combining bleach and acids.

If you payed to use the washer, surely they must have some way for you to channel your best Karen and complain about it.