Virtualmin GPL creating and delete separated Apache .conf files

Using Virtualmin GPL 1.81

I make a Apache virtualhosts in separate files. After creating virtual server have a error in line 1376 about no directive in httpd.conf, but file created in /etc/httpd/conf/sites-available. Server work correct and apache starting.
But if delete virtual server in Virtualmin have a log about the impossibility of removing from /etc/httpd/conf/httpd.conf