How can I download this rtmp video?

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The message got from wireshark as follow:

connect.?..........app...vod2/..flashVer...WIN 26,0,0,131..swfUrl..@http://static.koolearn.com/kooRtmpPlayer/KoolearnPlayer4..0.9.swf..tcUrl...rtmp://video.koopass.com/vod2/..fpad....capabilities.@m........audioCodecs.@.... .....videoCodecs.@o.......
vide.oFunction.?.........pageUrl..,http://www.koolearn.com/product/c_8_...jectEncoding.@......... .. 1002001-1...1002001..
1.498380998220.. c3c194bd9e4b440900ff1829f29d6ee1...4.0.9-201706191501.............&%..............&%....... .........................._result.?..........fmsVe r...FMS/4,5,5,4013..capabilities.@o........mode.?......... ...level...status..code...NetConnection.Connect.Su ccess..description...Connection succeeded...objectEncoding.@.........data.......ve rsion..
4,5,5,4013.. .. ..................;.........&%.......V........vali date_Client.@..........,YTg1Zj9NOTloNzN3clZpU2N/T+FCcjJIc99KNlpvVWM=...MjQBNw==......8.......
setCurrUserIp.............223.72.73.7|103.235.244. 178................createStream.@........B.....
...........B.....,......2...2........:s.mwC:..5..! P0.....G|....C.....T.....getStreamLength.@........ ..4mp4:/ys/2015/yd/ybn/5_6fen/2015_ys_yd_5-6_ybn_16.mp4C..........._result.@...........MTYxXz kzXzkxXz82M1EBN9ExNzhfOTNfO7lfMTczXzgBXzk0Xz81MlEx N7lfMTkwXz82OVExO7ZfMTY1XzY2Xz8AMVExN7RfMTMwXz80.N 9EBMVE3O9ExNTdfMTkwXzc3Xzk0Xz8AN9ExNT5fMTg3Xz83N9E =..............._result.@.........?.......B.....
..........................._result.@.........@..s. E.....]..I.........play............4mp4:/ys/2015/yd/ybn/5_6fen/2015_ys_yd_5-6_ybn_16.mp4

so I make the download bat file as below:

rtmpdump -V -r "rtmp://video.koopass.com/vod2/" -a "vod2/" -f "WIN 26,0,0,131" -W "http://static.koolearn.com/kooRtmpPlayer/KoolearnPlayer4.0.9.swf" -p "http://www.koolearn.com/product/c_8_441.html" -y "mp4:/ys/2015/yd/ybn/5_6fen/2015_ys_yd_5-6_ybn_16.mp4" -o "02aaa.mp4"

but I got the message as below,it does not work

F:\RtmpDownloader>rtmpdump -V -r "rtmp://video.koopass.com/vod2/" -a "vod2/" -f"WIN 26,0,0,131" -W "http://static.koolearn.com/kooRtmpPlayer/KoolearnPlayer4.0.9.swf" -p "http://www.koolearn.com/product/c_8_441.html" -y "mp4:/ys/2015/yd/ybn/5_6fen/2015_ys_yd_5-6_ybn_16.mp4" -o "02aaa.mp4"
RTMPDump v2.3
(c) 2010 Andrej Stepanchuk, Howard Chu, The Flvstreamer Team; license: GPL
DEBUG: Parsing...
DEBUG: Parsed protocol: 0
DEBUG: Parsed host : video.koopass.com
DEBUG: Parsed app : vod2
DEBUG: Protocol : RTMP
DEBUG: Hostname : video.koopass.com
DEBUG: Port : 1935
DEBUG: Playpath : mp4:/ys/2015/yd/ybn/5_6fen/2015_ys_yd_5-6_ybn_16.mp4
DEBUG: tcUrl : rtmp://video.koopass.com:1935/vod2/
DEBUG: swfUrl : http://static.koolearn.com/kooRtmpPl...layer4.0.9.swf
DEBUG: pageUrl : http://www.koolearn.com/product/c_8_441.html
DEBUG: app : vod2/
DEBUG: flashVer : WIN 26,0,0,131
DEBUG: live : no
DEBUG: timeout : 30 sec
DEBUG: SWFSHA256:
DEBUG: 72 a4 eb 5c 85 24 dc 9f f6 b9 88 70 6d 6c 60 cb
DEBUG: e1 d8 a0 97 af 26 61 e6 7e e1 e8 bc e2 6d fb 05
DEBUG: SWFSize : 3279018
DEBUG: Setting buffer time to: 36000000ms
Connecting ...
DEBUG: RTMP_Connect1, ... connected, handshaking
DEBUG: HandShake: Client type: 03
DEBUG: HandShake: Client digest offset: 53
DEBUG: HandShake: Initial client digest:
DEBUG: 7b cd 56 34 10 fe 60 30 f5 7d 45 cd 7e f0 24 ee
DEBUG: ae d9 50 70 7e e1 56 7d 0c 57 48 a1 75 8c f5 64
DEBUG: HandShake: Type Answer : 03
DEBUG: HandShake: Server Uptime : 1328504755
DEBUG: HandShake: FMS Version : 4.5.5.1
DEBUG: HandShake: Calculated digest key from secure key and server digest:
DEBUG: 6c 62 1a 7e ef a8 39 55 ee 39 0b b2 64 d5 3b 12
DEBUG: 35 e3 0b 5e f6 01 f7 e9 14 e8 aa fe 94 6c 23 ef
DEBUG: HandShake: Client signature calculated:
DEBUG: c0 8d 3f 9d 74 b4 d6 ca b0 1d e7 ce ef 4a 4f 83
DEBUG: 33 9f 5b 95 d9 91 6e 3d 91 b0 bb 5b 6a 47 2f cd
DEBUG: HandShake: Server sent signature:
DEBUG: 40 44 7f 6d 87 97 cb a3 a2 13 79 f3 a7 4a 83 29
DEBUG: bf 90 41 a4 28 87 43 2f f0 d6 b7 b9 83 80 e3 37
DEBUG: HandShake: Digest key:
DEBUG: 13 0a 9f 12 9a 3d b4 02 35 6e ae 36 02 a5 07 69
DEBUG: 86 6e 8c 27 4b 0b 93 f1 97 d2 0b 47 27 67 47 4d
DEBUG: HandShake: Signature calculated:
DEBUG: 40 44 7f 6d 87 97 cb a3 a2 13 79 f3 a7 4a 83 29
DEBUG: bf 90 41 a4 28 87 43 2f f0 d6 b7 b9 83 80 e3 37
DEBUG: HandShake: Genuine Adobe Flash Media Server
DEBUG: HandShake: Handshaking finished....
DEBUG: RTMP_Connect1, handshaked
DEBUG: Invoking connect
INFO: Connected...
DEBUG: HandleServerBW: server BW = 2500000
DEBUG: HandleClientBW: client BW = 2500000 2
DEBUG: HandleChangeChunkSize, received: chunk size change to 4096
DEBUG: RTMP_ClientPacket, received: invoke 126 bytes
DEBUG: (object begin)
DEBUG: Property: NULL
DEBUG: (object begin)
DEBUG: Property: <Name: level, STRING: error>
DEBUG: Property: <Name: code, STRING: NetConnection.Connect.Rejected>
DEBUG: Property: <Name: description, STRING: Connection failed.>
DEBUG: Property: <Name: application, BOOLEAN: FALSE>
DEBUG: (object end)
DEBUG: (object end)
DEBUG: HandleInvoke, server invoking <_error>
ERROR: rtmp server sent error
DEBUG: RTMP_ClientPacket, received: invoke 18 bytes
DEBUG: (object begin)
DEBUG: Property: NULL
DEBUG: (object end)
DEBUG: HandleInvoke, server invoking <close>
ERROR: rtmp server requested close
DEBUG: Closing connection.

Anyone can help me ?Thanks!