Avencode D State - RTSP Stream Down

[ZeynepKlc]

My Sonoff GK-200MP2-B camera's avencode process is stuck in D (Uninterruptible Sleep) state and RTSP stream is down.

[root@sonoff-7c3b]# ps | grep avencode
    849 root      131m D    /mnt/mtd/ipc/app/avencode
    1575 root      1444 S    grep avencode

What I've tried:
-Cleared SD card log/alarm folders → no fix
-Stopped sonoff-hack watchdog (wd.sh) → no fix
-Disabled swap file → no fix
-Manually restarted avencode → new process also goes D immediately
-Simple SD card write test (echo test > /mnt/mmc/test.txt) works → SD card not completely dead
Comparison: Same model second camera (sonoff-c2c6) runs fine. Broken camera SD card is nearly empty (~1%), working one is at 24%.

Is there any solutions?

[roleoroleo]

Does the cam work without hack and sd card?

[ZeynepKlc]

Does the cam work without hack and sd card?

Yes. It works, but it gave the same result when I applied the hack.