[Essentials] Whenever I try making a kit it resets the config!

Please help me.
I am trying to create kits for my faction server, I am formatting everything correctly.
So what happens is I create the kit down below, save the config, and restart my server. But when I come back on, the kit doesn't exist so I go into my essentials folder and it resets my config.yml

Code:

weekly:
    delay: 10
    items:
      - 310 1 protection_environmental:2 durability:1
      - 311 1 protection_environmental:2 durability:1
      - 312 1 protection_environmental:2 durability:1
      - 313 1 protection_environmental:2 durability:1
      - 276 1 damage_all:3 fire_aspect:1
      - 261 1 arrow_damage:3 arrow_knockback:2 arrow_fire:1 arrow_infinite:1
      - 264 10
      - 364 10

Someone please help me. I have been trying consistently for the past few days and can't figure out what I am doing wrong.

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

Few problems:
Don't use underscores, don't say "protection enviromental" just put protection (same thing for power, punch, flame, infinity, and unbreaking).
If the kit is weekly the delay is in seconds so they could use it every ten seconds.

 

It still is deleting my config.yml and getting rid of all my work.

 

paste config.yml.broken using www.pastebin.com

 

http://pastebin.com/zA5TUxcm
That is my latest broken config.yml

 

you used tabs in your YML file.
please read http://ess.khhq.net/wiki/YAML_Tutorial

 

Thank you very much.