I did it already but no effect:
looks like this:
wxr-xr-x 2 root root 4096 Nov 24 17:43 .
drwxr-xr-x 8 root root 4096 Nov 24 19:27 ..
lrwxrwxrwx 1 root root 30 Mär 12 2020 charset.conf -> ../conf-available/charset.conf
lrwxrwxrwx 1 root root 44 Mär 12 2020 localized-error-pages.conf -> ../conf-available/localized-error-pages.conf
lrwxrwxrwx 1 root root 46 Mär 12 2020 other-vhosts-access-log.conf -> ../conf-available/other-vhosts-access-log.conf
lrwxrwxrwx 1 root root 31 Mär 12 2020 security.conf -> ../conf-available/security.conf
lrwxrwxrwx 1 root root 36 Mär 12 2020 serve-cgi-bin.conf -> ../conf-available/serve-cgi-bin.conf
lrwxrwxrwx 1 root root 35 Nov 24 17:43 weatherradio.conf -> ../conf-available/weatherradio.conf
now the restart apache service:
no error, but access to the webpage.
pi@allsky:/etc/apache2/conf-enabled $ sudo systemctl status apache2.service
● apache2.service - The Apache HTTP Server
Loaded: loaded (/lib/systemd/system/apache2.service; enabled; vendor preset: enabled)
Active: active (running) since Tue 2020-11-24 19:30:20 CET; 2min 24s ago
Docs:
httpd.apache.org/docs/2.4/
Process: 5221 ExecStart=/usr/sbin/apachectl start (code=exited, status=0/SUCCESS)
Main PID: 5225 (apache2)
Tasks: 55 (limit: 4915)
CGroup: /system.slice/apache2.service
├─5225 /usr/sbin/apache2 -k start
├─5226 /usr/sbin/apache2 -k start
└─5227 /usr/sbin/apache2 -k start
Nov 24 19:30:20 allsky systemd[1]: Starting The Apache HTTP Server...
Nov 24 19:30:20 allsky apachectl[5221]: AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1.
Nov 24 19:30:20 allsky systemd[1]: Started The Apache HTTP Server.
mods-enabled:
pi@allsky:/etc/apache2/mods-enabled $ ll
insgesamt 8
drwxr-xr-x 2 root root 4096 Mär 12 2020 .
drwxr-xr-x 8 root root 4096 Nov 24 19:27 ..
lrwxrwxrwx 1 root root 36 Mär 12 2020 access_compat.load -> ../mods-available/access_compat.load
lrwxrwxrwx 1 root root 28 Mär 12 2020 alias.conf -> ../mods-available/alias.conf
lrwxrwxrwx 1 root root 28 Mär 12 2020 alias.load -> ../mods-available/alias.load
lrwxrwxrwx 1 root root 33 Mär 12 2020 auth_basic.load -> ../mods-available/auth_basic.load
lrwxrwxrwx 1 root root 33 Mär 12 2020 authn_core.load -> ../mods-available/authn_core.load
lrwxrwxrwx 1 root root 33 Mär 12 2020 authn_file.load -> ../mods-available/authn_file.load
lrwxrwxrwx 1 root root 33 Mär 12 2020 authz_core.load -> ../mods-available/authz_core.load
lrwxrwxrwx 1 root root 33 Mär 12 2020 authz_host.load -> ../mods-available/authz_host.load
lrwxrwxrwx 1 root root 33 Mär 12 2020 authz_user.load -> ../mods-available/authz_user.load
lrwxrwxrwx 1 root root 32 Mär 12 2020 autoindex.conf -> ../mods-available/autoindex.conf
lrwxrwxrwx 1 root root 32 Mär 12 2020 autoindex.load -> ../mods-available/autoindex.load
lrwxrwxrwx 1 root root 30 Mär 12 2020 deflate.conf -> ../mods-available/deflate.conf
lrwxrwxrwx 1 root root 30 Mär 12 2020 deflate.load -> ../mods-available/deflate.load
lrwxrwxrwx 1 root root 26 Mär 12 2020 dir.conf -> ../mods-available/dir.conf
lrwxrwxrwx 1 root root 26 Mär 12 2020 dir.load -> ../mods-available/dir.load
lrwxrwxrwx 1 root root 26 Mär 12 2020 env.load -> ../mods-available/env.load
lrwxrwxrwx 1 root root 29 Mär 12 2020 filter.load -> ../mods-available/filter.load
lrwxrwxrwx 1 root root 27 Mär 12 2020 mime.conf -> ../mods-available/mime.conf
lrwxrwxrwx 1 root root 27 Mär 12 2020 mime.load -> ../mods-available/mime.load
lrwxrwxrwx 1 root root 32 Mär 12 2020 mpm_event.conf -> ../mods-available/mpm_event.conf
lrwxrwxrwx 1 root root 32 Mär 12 2020 mpm_event.load -> ../mods-available/mpm_event.load
lrwxrwxrwx 1 root root 34 Mär 12 2020 negotiation.conf -> ../mods-available/negotiation.conf
lrwxrwxrwx 1 root root 34 Mär 12 2020 negotiation.load -> ../mods-available/negotiation.load
lrwxrwxrwx 1 root root 33 Mär 12 2020 reqtimeout.conf -> ../mods-available/reqtimeout.conf
lrwxrwxrwx 1 root root 33 Mär 12 2020 reqtimeout.load -> ../mods-available/reqtimeout.load
lrwxrwxrwx 1 root root 31 Mär 12 2020 setenvif.conf -> ../mods-available/setenvif.conf
lrwxrwxrwx 1 root root 31 Mär 12 2020 setenvif.load -> ../mods-available/setenvif.load
lrwxrwxrwx 1 root root 29 Mär 12 2020 status.conf -> ../mods-available/status.conf
lrwxrwxrwx 1 root root 29 Mär 12 2020 status.load -> ../mods-available/status.load