Can't use gst-shark with gst-python file.

[alibulus]

Device : Jetson Nano
Jetpack version : 4.6.1
Deepstream Version : 6.0.1
GStreamer version : 1.14.5
OS : Ubuntu 18.04
Python : 3.8.16

My code is working good. But when i try to run it with gst-shark tracers to see each element's situation like this :

(venv) nvidia@nvidia-desktop:~/Desktop/eklenecek/eksik$ GST_DEBUG="GST_TRACER:7" GST_TRACERS="proctime;interlatency" python3 factorysenderv2-hw-probeli.py

i receive this error :

nvidia@nvidia-desktop:~/gst-shark/scripts/graphics$ ./gstshark-plot /home/nvidia/Desktop/kod/bu/gstshark_2023-03-31_15:09:15/ -s pdf
[warning] Ill-shapen or missing "/* CTF x.y" header for text-only metadata.
[warning] Unsupported CTF specification version 127.0. Trying anyway.
[error] at line 1: token "": syntax error, unexpected $end

[error] Error creating AST
[warning] Unable to open trace metadata for path "/home/nvidia/Desktop/kod/bu/gstshark_2023-03-31_15:09:15".
[warning] [Context] Cannot open_trace of format ctf at path /home/nvidia/Desktop/kod/bu/gstshark_2023-03-31_15:09:15.
[warning] [Context] cannot open trace "/home/nvidia/Desktop/kod/bu/gstshark_2023-03-31_15:09:15" from /home/nvidia/Desktop/kod/bu/gstshark_2023-03-31_15:09:15/ for reading.
[error] Cannot open any trace for reading.

[error] opening trace "/home/nvidia/Desktop/kod/bu/gstshark_2023-03-31_15:09:15/" for reading.

[error] none of the specified trace paths could be opened.

Loading proctime events...
Loading interlatency events...
Loading scheduling events...
Loading framerate events...
Loading bitrate events...
Loading queuelevel events...
Loading cpuusage events...
Loading buffer events...
Processing proctime...
Processing interlatency...
Processing framerate...
Processing scheduling...
Processing cpusage...
Processing bitrate...
Processing queuelevel...
Processing buffer...

why i can't use gst-shark with gst-python .py files ? Please help.
Thank you.

[alibulus]

Any ideas? I really need help, please.