silk spawners

what permissions i have to give to a player to make them break with silk touch spawners and place them?
i tried this but it doesn't work
groups:
member:
options:
default: true
prefix: '&a&l[Membro]&f '
permissions:
- modifyworld.*
- guishop.use
- essentials.warps.*
- essentials.home
- essentials.sethome
- essentials.spawn
- essentials.list
- essentials.afk
- essentials.help
- essentials.rules
- essentials.mail
- essentials.mail.send
- essentials.msg
- essentials.warp
- essentials.warp.list
- essentials.pay
- essentials.tpa
- essentials.tpaccept
- essentials.tpdeny
- crazyenchantments.tinker
- crazyenchantments.blacksmith
- crazyenchantments.access
- crazyenchantments.access
- crazyenchantments.info
- silkspawners.place.* true
- silkspawners.silkdrop.* true

i tried
without true too but it doesn't work too.

i will try

EDIT1: no, silkspawners.* doesn't work...
* doesn't work too D:

EDIT2: now essentials is not working AGAIN this is the 5th time it does like this!!!!!!!!!!!!!!!!!!!
when i do /reload it says: Essentials failed to load, read the log file...

EDIT3: i solved the problems of essentials by deleting everything but not the essentials folder and downloading essentialsx for spigot,
i still have the silkspawners permissions problem do.

EDIT4: oh.. /spawn doesn't work.

EDIT5: i am trying downloading the setspawn plugin hope it works..

i did something now this are my plugins:

now permissionex is having problems, players in the chat should have the member prefix, they don't, i think it's because i deleted essentials...

what is the best chat manager?

How do i make an item that can't be fixed in the anvil like, i got a sword with sharpness 17 and i don't want player to abuse of it by fixing it.