Make Image for WNDAP360

Hello together,

I need to know how to make an image for my Netgear WNDAP360...
I tried the following tutorial but I dont get the files "openwrt-ar71xx-generic-wndap360-kernel.bin" and "openwrt-ar71xx-generic-wndap360-rootfs-squashfs.bin".
I only get the following files:
15-02-2018 14-47-02

Which one do I need to use?
The netgear still got the original firmware with version

Thank you for your help.

Greetings from Germany