Listings lost position on Ebay

Hello guys,
My listings were ranked on 1st page of ebay on some keywords, now all the listings lost positions and they are on last pages or even not found, what can be reason of it?

Are they selling? If not start a store, and sponsor those listings to up the ranks a bit.

sellings has decreased, is not there a way to rank them organically on 1st page Ebay? or what's the reason they lost positions?

I dont think you can rank organically in ebay but few things you might to consider

1) Put lower price
2) Offer 30 Days Return to make your status TOP RATED Seller
3) Try to increase your views
4) put more details on your product and DO NOT COPY from other seller (unique content) it seems help according to our clients