Ffmpeg setup issues

[GameNet]

Hi

I am having issues trying to setup Ffmpeg feature on my gaming community. I am getting error related to

Error code:
Code:

Error: Call to undefined function XFMG\Ffmpeg\exec() in src/addons/XFMG/Ffmpeg/Runner.php at line 299
XFMG\Ffmpeg\Runner->run() in src/addons/XFMG/Ffmpeg/Runner.php at line 71
XFMG\Ffmpeg\Runner->getVersionYear() in src/addons/XFMG/Validator/Ffmpeg.php at line 37
XFMG\Validator\Ffmpeg->isValid() in src/addons/XFMG/Option/Ffmpeg.php at line 25...

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Ffmpeg setup issues

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