MAC address & deauth issue

[pranavkinicok]

I'm using latest version of kali Linux and the wifi adapter that I'm using is ALPHA AWUS1900 which supports packet inject monitor mode dual band and so on.
I'm using the updated version of this tool that I pulled from here. The attack I'm using is regular.
Firstly, I'm unable to get mac address of some access points it says "Automatically probing and adding tlients mac-addresses, please wait…" and secondly, even if I get the mac adress I'm unable to proceed after deauth ie; it's getting stuck at that step and not proceeding to handshake.
Please help me...!!