Hi Jess,
Thank you very much. I'm happy! With your help I could solve the problem! 
I did the same as described in the linked thread.
The error above should be resolved by running:
php $BASE_DIR/app/generator/generate.php
and:
$APP_DIR/deployment/base/scripts/installPlugins.php
After stopping the httpd,mechcached and kaltura-monit service I did run the php scripts manually.
The error message on the server disappeared and there is no more "'Dynamic enum not found " error messages in the log.
The issue with the missing html5 library could I solve by simply creating a new Folder called v2.32 and copy the content from v2.32.1 to it.