Need Server Help

I tried launching some essential stuff in a bukkit server but failed with missing items
Here's what happen when i tried launching

Code:

[21:53:56 INFO]: [EssentialsChat] Enabling EssentialsChat v2.13.1

[21:53:56 INFO]: [EssentialsProtect] Enabling EssentialsProtect v2.13.1

[21:53:56 INFO]: [EssentialsSpawn] Enabling EssentialsSpawn v2.13.1

[21:53:56 INFO]: [EssentialsAntiBuild] Enabling EssentialsAntiBuild v2.13.1

[21:53:56 ERROR]: ?4Unknown item 10 in protect.alert.on-placement list.

[21:53:56 ERROR]: ?4Unknown item 11 in protect.alert.on-placement list.

[21:53:56 ERROR]: ?4Unknown item 46 in protect.alert.on-placement list.

[21:53:56 ERROR]: ?4Unknown item 327 in protect.alert.on-placement list.

[21:53:56 ERROR]: ?4Unknown item 327 in protect.alert.on-use list.

[21:53:56 ERROR]: ?4Unknown item 10 in protect.blacklist.placement list.

[21:53:56 ERROR]: ?4Unknown item 11 in protect.blacklist.placement list.

[21:53:56 ERROR]: ?4Unknown item 46 in protect.blacklist.placement list.

[21:53:56 ERROR]: ?4Unknown item 327 in protect.blacklist.placement list.

[21:53:56 ERROR]: ?4Unknown item 327 in protect.blacklist.usage list.

[21:53:56 INFO]: Server permissions file permissions.yml is empty, ignoring it

[21:53:56 INFO]: Done (2.864s)! For help, type "help" or "?"

 

@Squillan
Depending on your version, it may be that essentials no longer supports item IDs (which is good). Try using the Material names instead.