Jibri start record then close record automatic

i install jitsi at a server and it work success
and i install jibri at anther server
when try to start record it say that record is start and after 3 sec the record was stoped and when look to recording file has size is 48 bit
i install jitsi and jibri with installation guide
and ffmpeg.0.txt
say that
= 0kB time=00:00:00.13 bitrate= 2.8kbits/s speed=0.275x
2020-09-24 09:56:57.255 INFO: [60] ffmpeg.call() frame= 9 fps=8.7 q=21.0 size= 0kB time=00:00:00.27 bitrate= 1.4kbits/s speed=0.269x
2020-09-24 09:56:58.256 INFO: [60] ffmpeg.call() frame= 12 fps=7.8 q=21.0 size= 0kB time=00:00:00.37 bitrate= 1.0kbits/s speed=0.241x
2020-09-24 09:56:58.256 INFO: [60] ffmpeg.call() frame= 17 fps=8.2 q=21.0 size= 0kB time=00:00:00.53 bitrate= 0.7kbits/s speed=0.257x
2020-09-24 09:56:59.257 INFO: [60] ffmpeg.call() frame= 20 fps=7.8 q=21.0 size= 0kB time=00:00:00.63 bitrate= 0.6kbits/s speed=0.245x
2020-09-24 09:56:59.257 INFO: [60] ffmpeg.call() frame= 25 fps=8.1 q=21.0 size= 0kB time=00:00:00.81 bitrate= 0.5kbits/s speed=0.262x
2020-09-24 09:57:00.305 INFO: [60] ffmpeg.call() frame= 33 fps=9.1 q=21.0 size= 0kB time=00:00:01.06 bitrate= 0.4kbits/s speed=0.294x
2020-09-24 09:57:00.313 INFO: [60] ffmpeg.call() frame= 42 fps=9.9 q=21.0 size= 0kB time=00:00:01.36 bitrate= 0.3kbits/s speed=0.323x
2020-09-24 09:57:02.884 INFO: [60] ffmpeg.call() frame= 44 fps=8.9 q=21.0 size= 0kB time=00:00:01.43 bitrate= 0.3kbits/s speed=0.291x

i try to change java version from 11 to 8
and my current version
openjdk version “1.8.0_265”
OpenJDK Runtime Environment (build 1.8.0_265-8u265-b01-0ubuntu2~18.04-b01)
OpenJDK 64-Bit Server VM (build 25.265-b01, mixed mode)

and the problem still

can anyone help me please