Vstarcam C7824WIP - Wrong HTML Header and unable to stream RTSP

I have the camera Vstarcam C7824WIP. I have several problems with it.
1)        My last firmware is 48.53.46.8 and if I try to upgrade to 48.53.46.9, upgrade always fails.
2)        The HTTP Header of the camera is wrong. This is generating errors when trying to access the camera
        HTTP/1.1 200 OK
        Server: GoaHead
        Tue, 12 Jun 2012 01:56:34 GMT   => It should be Date: 2 Jun 2012 01:56:34 GMT
        Content-Type:  image/jpeg
        Content-Length: 15398
        Connection: close[/code]
3)        If I use VLC with this string “rtsp://admin:888888@192.168.1.23:14000/udp/av0_0" It works. My port is 14000 because I changed the default configuration!!! The problem is when I use FFMPEG to record the stream:
ffmpeg -hide_banner -loglevel error -rtsp_transport udp -y -i rtsp://admin:888888@192.168.1.23:14000/udp/av0_0 -c:v copy -c:a aac -map 0 -segment_time 300 -segment_format mp4 -t 00:00:10 test.mp4

I got this error:
[hevc @ 00000194528e3c40] VPS 0 does not exist