No Wireless Extensions in Linux Debian

Hello WonderHowTo-Community!

I have a problem with my Wifi on kali. I run win 10 and I boot kali from a external hard drive. When I type in the shell: iwconfig it says "No wireless extensions found".

If I run airmon-ng check kill and then airmon-ng start wlan0 it gives me this error code:

ls: cannot access '/sys/class/ieee80211/': No such file or directory.

Thanks for the help!