retried
rm /etc/pihole/ftlbranch
pihole checkout dev
[i] Shortcut "dev" detected - checking out development / devel branches...
[i] Pi-hole Core
[✓] Switching to branch: 'development' from 'refs/heads/master'
Bereits aktuell.
[i] Web interface
[✓] Switching to branch: 'devel' from 'refs/heads/master'
Bereits aktuell.
[✓] Detected x86_64 architecture
[✓] Installing FTL
[i] Running installer to upgrade your installation
[✓] Root user check
.;;,.
.ccccc:,.
:cccclll:. ..,,
:ccccclll. ;ooodc
'ccll:;ll .oooodc
.;cll.;;looo:.
.. ','.
.',,,,,,'.
.',,,,,,,,,,.
.',,,,,,,,,,,,....
....''',,,,,,,'.......
......... .... .........
.......... ..........
.......... ..........
......... .... .........
........,,,,,,,'......
....',,,,,,,,,,,,.
.',,,,,,,,,'.
.',,,,,,'.
..'''.
[i] Testing for port 53 availability...
[✓] Port 53 is available.
[i] Existing PHP installation detected : PHP version 7.2.7-0ubuntu0.18.04.2
[i] Performing unattended setup, no whiptail dialogs will be displayed
[✓] Disk space check
[✓] Update local cache of available packages
[✓] Checking apt-get for upgraded packages... up to date!
[i] Installer Dependency checks...
[✓] Checking for apt-utils
[✓] Checking for dialog
[✓] Checking for debconf
[✓] Checking for dhcpcd5
[✓] Checking for git
[✓] Checking for iproute2
[✓] Checking for whiptail
[✓] Check for existing repository in /etc/.pihole
[✓] Update repo in /etc/.pihole
[✓] Check for existing repository in /var/www/html/admin
[✓] Update repo in /var/www/html/admin
[i] Main Dependency checks...
[✓] Checking for bc
[✓] Checking for cron
[✓] Checking for curl
[✓] Checking for dnsutils
[✓] Checking for iputils-ping
[✓] Checking for lsof
[✓] Checking for netcat
[✓] Checking for psmisc
[✓] Checking for sudo
[✓] Checking for unzip
[✓] Checking for wget
[✓] Checking for idn2
[✓] Checking for sqlite3
[✓] Checking for libcap2-bin
[✓] Checking for dns-root-data
[✓] Checking for resolvconf
[✓] Checking for lighttpd
[✓] Checking for php7.2-common
[✓] Checking for php7.2-cgi
[✓] Checking for php7.2-sqlite3
[✓] Enabling lighttpd service to start on reboot
[✓] Installing scripts from /etc/.pihole
[i] Installing configs from /etc/.pihole...
[i] Existing dnsmasq.conf found... it is not a Pi-hole file, leaving alone!
[✓] Copying 01-pihole.conf to /etc/dnsmasq.d/01-pihole.conf
[i] Installing blocking page...
[✓] Creating directory for blocking page, and copying files
[✗] Backing up index.lighttpd.html
No default index.lighttpd.html file found... not backing up
[✓] Installing sudoer file
[✓] Installing latest Cron script
[✓] Installing latest logrotate script
[i] FTL Checks...
[✓] Detected x86_64 architecture
[i] Checking for existing FTL binary...
[✓] Downloading and Installing FTL
[i] FTL can now resolve DNS Queries without dnsmasq running separately
[✓] Stopping dnsmasq service...
[✓] Disabling dnsmasq service
[✓] man pages installed and database updated
[✓] Starting lighttpd service
[✓] Enabling lighttpd service to start on reboot
[i] Restarting services...
[✓] Starting pihole-FTL service
[✓] Enabling pihole-FTL service to start on reboot
[✓] Deleting existing list cache
[✗] DNS service is not running
[✓] Starting DNS service
[✗] DNS resolution is not available
Error: Unable to complete update, please contact support