Cannot reach any other webpage then NCP - How can I install any other Websoftware, like BackupPC?

Hello, I have a small question, I installed NCP and I would like to also install backupPc, but unfortunately it crashes apache (after normal install with apt-get).

This is the error message:

May 19 13:48:40 nextcloudplus apachectl[1899]: AH00526: Syntax error on line 1 of /etc/apache2/conf-enabled/backuppc.conf:

I deleted this file and now NCP works again, but I could not start the web interface from BackupPC.

Has anybody an idea how to modify the apache files to reach this web interface?

Normally it should be something like: mywebsite/backuppc …

I really appreciate any help!

Thanks in advance

This is my /etc/apache2/conf-enabled/backuppc.conf

Alias /backuppc /usr/share/backuppc/cgi-bin/

<Directory /usr/share/backuppc/cgi-bin/>
	AllowOverride None
	Allow from all

        # Uncomment the line below to ensure that nobody can sniff importanti
        # info from network traffic during editing of the BackupPC config or
        # when browsing/restoring backups.
        # Requires that you have your webserver set up for SSL (https) access.
	Options ExecCGI FollowSymlinks
	AddHandler cgi-script .cgi
	DirectoryIndex index.cgi

        AuthUserFile /etc/backuppc/htpasswd
	AuthType basic
	AuthName "BackupPC admin"
	require valid-user


@Peter753 Peter75j