After I saved configuration in WHM > Apache Configuration > Global Configuration, most of websites becomes error; "Great Success ! Apache is working on your cPanel® and WHM™ Server".

Whereas, I didn't change/edit any configuration. I only saved and restarted the apache as what recommended in CSF setting.

I think, this error can only be rectified by/with backup (pkgacct), and then, terminate the account and restore back from backup.

So, how do I fix this problem without having to terminate and restore back? because it's very difficult to backup and restore one by one there are so many account.

Thanks in advance.