I can't /own my boss battle armor even though no one owns it it says "you are not the owner of this item" when there is no item I don't know how it even got un-owned in the first place
You can /own it, though if you do it will break the armors value as well as the words underneath it that says SG Boss Armor Chestplate/leggings/helmet/boots. I've done it before a long while ago and had to have a staff member fix it. Though for in this situation, it looks as though to be some glitch if it was never /owned.
This is because of the multi line lore that the armor has, causing it to incorrectly report it being owned. But you could own it initially because it had no data
No, it's a non issue @Drewbo_ - contact Clar or imagine and they will get you a replacement piece if requested.