Error when I add a audio file

Omeka S Installing
1

Hello
I use Omeka S 4.2, and I have an error when I add one audio file, 12 MB, and I have these errors
TypeError
IiifServer\Mvc\Controller\Plugin\MediaDimension::cacheMediaDimensions(): Argument #1 ($mediaId) must be of type int, null given, called in /home/koluelor/public_html/modules/IiifServer/src/Mvc/Controller/Plugin/MediaDimension.php on line 151

2

I install the new version of Iiifserver and also imageserver and I have these error when actualize
Error
Call to undefined function ImageServer\shell_exec()

3

the new error when I actualize IiifServer
TypeError
IiifServer\Mvc\Controller\Plugin\MediaDimension::cacheMediaDimensions(): Argument #1 ($mediaId) must be of type int, null given, called in /home/koluelor/public_html/modules/IiifServer/src/Mvc/Controller/Plugin/MediaDimension.php on line 182