Fresh Installation on Centos7 using the installation Script

Dear Developer We have an issue regarding the Fresh installation on Centos7
1- ERROR! The requested handler ‘restart network manager’ was not found in either the main handlers list nor in the listening handlers list.

2- Supervisord Service not starting automatic after restarting the system on production mode

3- let’s encrypt Give error
OSError: Command /opt/ - setuptools pip wheel failed with error code 1
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