Installing new version of config file /etc/icinga2/conf.d/templates.conf ...
Installing new version of config file /etc/icinga2/constants.conf ...
Installing new version of config file /etc/icinga2/scripts/mail-service-notification.sh ...
Installing new version of config file /etc/icinga2/scripts/mail-host-notification.sh ...
checking Icinga2 configuration
checking Icinga2 configuration. Check '/var/log/icinga2/startup.log' for details. ... failed!
invoke-rc.d: initscript icinga2, action "start" failed.
dpkg: error processing icinga2-common (--configure):
 subprocess installed post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of icinga2-bin:
 icinga2-bin depends on icinga2-common (= 2.3.4-3~debmon70+1); however:
  Package icinga2-common is not configured yet.

dpkg: error processing icinga2-bin (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of icinga2-ido-mysql:
 icinga2-ido-mysql depends on icinga2-bin (= 2.3.4-3~debmon70+1); however:
  Package icinga2-bin is not configured yet.
 icinga2-ido-mysql depends on icinga2-common (= 2.3.4-3~debmon70+1); however:
  Package icinga2-common is not configured yet.

dpkg: error processing icinga2-ido-mysql (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of icinga2:
 icinga2 depends on icinga2-bin (= 2.3.4-3~debmon70+1); however:
  Package icinga2-bin is not configured yet.
 icinga2 depends on icinga2-common (= 2.3.4-3~debmon70+1); however:
  Package icinga2-common is not configured yet.

dpkg: error processing icinga2 (--configure):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 icinga2-common
 icinga2-bin
 icinga2-ido-mysql
 icinga2
E: Sub-process /usr/bin/dpkg returned an error code (1)