[AP] scatter & polite doesn't start from webinterface

hi,

i have a fresh instalation from kali on a raspi 3. i installed fruitywifi 2.4 with apt.
the ap module works fine and ich can start picker from webinterface. but scatter and polite doesn't start.
when i start scatter or polite from the console they work fine an i get an output.

any idea how i can fix the start from the gui?

thanks