White/gray mold on seeds
On 3rd August I put 3 persimmon seeds in the soil under a plastic bag. I put them 1 cm into the soil. Every 2-3 days I opened the plastic bag for ~40 minutes so they could breathe. Some youtube guy said to do so.
Today I was checking on them and saw mold on the soil on top of where one of the seeds were planted. 2 out of 3 seeds are covered in mold. 1 of them is not and on top of it grew some type of grass? You can see it on the photo.
I think the problem is in the soil, it consists of ~60% soil, ~25% peat, ~15% vermicompost, if I remember right, and I also added some sand, maybe 10% idk honestly.
*the seeds are from real persimmons, my grandma had them for some months; before putting them into the soil I left them for 2 hours in water and for 15 minutes into hydrogen peroxide 3% which is a month overdue.
What should I do?