Ik what the issue is you see the part where it says
gived-game-start-items: - wooden_sword - leather_helmet - leather_boots - leather_leggings - leather_chestplategived-player-respawn-items:- wooden_sword- leather_helmet- leather_boots- leather_leggings- leather_chestplate
the spacing for the respawn items is incorrect set it like this and it should work
gived-game-start-items: - wooden_sword - leather_helmet - leather_boots - leather_leggings - leather_chestplategived-player-respawn-items: - wooden_sword - leather_helmet - leather_boots - leather_leggings - leather_chestplate