Unable to open management console

root@DC:~# univention-check-join-status
Error: ldapsearch -x failed
root@DC:~# ls -l /etc/apache2/{.,sites-*}
/etc/apache2/.:
total 92
-rw-r–r-- 1 root root 7224 Apr 5 2019 apache2.conf
drwxr-xr-x 2 root root 4096 Nov 16 13:52 conf-available
drwxr-xr-x 2 root root 4096 Nov 13 17:26 conf-enabled
-rw-r–r-- 1 root root 1782 Nov 3 2018 envvars
-rw-r–r-- 1 root root 31063 Nov 3 2018 magic
drwxr-xr-x 2 root root 16384 Nov 16 13:52 mods-available
drwxr-xr-x 2 root root 4096 May 17 2019 mods-enabled
-rw-r–r-- 1 root root 437 Nov 16 13:52 ports.conf
-rw-r–r-- 1 root root 320 Nov 3 2018 ports.conf.debian
drwxr-xr-x 2 root root 4096 Nov 16 13:52 sites-available
drwxr-xr-x 2 root root 4096 Nov 13 17:26 sites-enabled
drwxr-xr-x 2 root root 4096 Nov 16 13:52 ucs-sites.conf.d

/etc/apache2/sites-available:
total 24
-rw-r–r-- 1 root root 627 Nov 16 13:52 000-default.conf
-rw-r–r-- 1 root root 1332 Nov 3 2018 000-default.conf.debian
-rw-r–r-- 1 root root 1310 Nov 16 13:52 default-ssl.conf
-rw-r–r-- 1 root root 6338 Nov 3 2018 default-ssl.conf.debian
-rw-r–r-- 1 root root 70 Oct 12 2018 univention-self-service.conf

/etc/apache2/sites-enabled:
total 0
lrwxrwxrwx 1 root root 35 Apr 15 2019 000-default.conf -> …/sites-available/000-default.conf
lrwxrwxrwx 1 root root 35 May 17 2019 default-ssl.conf -> …/sites-available/default-ssl.conf
lrwxrwxrwx 1 root root 47 May 14 2019 univention-self-service.conf -> …/sites-available/univention-self-service.conf

Mastodon