textures, maps, and skinpacks are no longer on my purchased page, and i have to buy again.

i logged on to minecraft today and discovered a very upsetting issue, my texture packs, skins, and maps that i purchased, using minecoins all reverted back to purchasable items, even though i bought them already. i tried to uninstall and reinstall, with no luck. i do not have any refund for said add-ons.