I've found these 2 errors when installing ImunifyAV:
Detecting ostype... /etc/os-release: line 1: syntax error near unexpected token `('
/etc/os-release: line 1: `CentOS release 6.8 (Final)'
Checking for an update to imav-deploy.sh
Adding ImunifyAV to CSF exceptions.../opt/alt/python35/share/imunify360/scripts/csf_tool: line 32: /etc/csf/imunify_allow.conf: No such file or directory
Restarting CSF to apply pignore changes
Seems not to interfere with the installation but I just wanted to let you know.