Librenms install problem with composer-wrapper on RHEL 8 and Alma Linux 8

No the system is direct behind a firewall system and we need no proxy for network access.
I used the script from the composer side and as librenms user i get an error in the second step.

As root i can install composer and after that i changed the owner.

If i now run the composer_wrapper i get a “can not open stream” message.

[librenms@dbserv-intern ~]$ php scripts/composer_wrapper.php install --no-dev
Could not scan for classes inside “vendor/dapphp/radius” which does not appear to be a file nor a folder

[ErrorException]
include(/opt/librenms/LibreNMS/ComposerHelper.php): failed to open stream: Operation not permitted

My next step is a reinstall of the server with:
Step 1 minimum security settings
if this is working
Step 2 … reinstall with more and more security settings until i know that happens here.

Thanks for your help
I will send updates if in know more

Silvio