[Bug] Scav Case unlootable

I've submitted a moonshine for the scavs to bring me loot on the Scav Case but I cannot receive the items.

I click on "GET ITEMS" but it says that I don't have enough space in my stash.

I have already emptied a 6×15 space but it still says that I dont have enough space.

I've tried moving it around and organize it and was able to make it a 10×8 space but it still dont allow me to receive the items.

What do I do?