Install PirateBox on to a Kingston MLW221 (G1)

Hi , I would like to run PirateBox on a Kingston MLW221 (G1)

I've got OpenWRT up and running but i cant install extendRoot ,

thats the error Message

Installing extendRoot (0.9.1-3) to root...
Downloading [beta.openwrt.piratebox.de].
Collected errors:
 * satisfy_dependencies_for: Cannot satisfy the following dependencies for extendRoot:
 *      kernel (= 3.10.49-1-ef9ac24c0d24577bacf18aca745d1aba) *         kernel (= 3.10.49-1-ef9ac24c0d24577bacf18aca745d1aba) *         kernel (= 3.10.49-1-ef9ac24c0d24577bacf18aca745d1aba) *
 * opkg_install_cmd: Cannot install package extendRoot.

thats the Kernel info

root@OpenWrt:/# opkg info kernel
Package: kernel
Version: 3.10.49-1-daefdfe80545d55118aaf32e1c347760
Depends: libc
Status: install hold installed
Architecture: ramips_24kec
Installed-Time: 1425751190