Hello,

I think that this could be due to your PHP configuration or if you are using CSF and LFD maybe the process killer is killing the long running process.

What you could do is the following:

• Increase your PHP memory via your php.ini file
• Increase your PHP max execution time
• Make sure that your server actually has enough RAM, if not you could add a swap partition, here’s how to do that on a CentOS 7 server: https://www.digitalocean.com/community/tutorials/how-to-add-swap-on-centos-7
• You should check your PHP error logs for more information.
• Also check your LFD logs and try to whitelist the process or the user that you are running the installation with so that the process does not get killed.

Hope that this helps!
Bobby