Sorry for the delay -
[i] Checking for updates...
[i] Pi-hole Core: up to date
[i] Web Interface: up to date
[i] FTL: update available
[i] FTL out of date, it will be updated by the installer.
[✓] Root user check
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:cccclll:. ..,,
:ccccclll. ;ooodc
'ccll:;ll .oooodc
.;cll.;;looo:.
.. ','.
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.',,,,,,,,,,,,....
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......... .... .........
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[i] Existing PHP installation detected : PHP version 7.3.6-1+0~20190531112735.39+stretch~1.gbp6131b7
[i] Performing unattended setup, no whiptail dialogs will be displayed
[✓] Disk space check
[i] Update local cache of available packages...
e[K [✓] Update local cache of available packages
[i] Checking apt-get for upgraded packages...
e[K [✓] Checking apt-get for upgraded packages... 2 updates available
[i] It is recommended to update your OS after installing the Pi-hole!
[i] Installer Dependency checks...
[i] Checking for apt-utils...
e[K [✓] Checking for apt-utils
[i] Checking for dialog...
e[K [✓] Checking for dialog
[i] Checking for debconf...
e[K [✓] Checking for debconf
[i] Checking for dhcpcd5...
e[K [✓] Checking for dhcpcd5
[i] Checking for git...
e[K [✓] Checking for git
[i] Checking for iproute2...
e[K [✓] Checking for iproute2
[i] Checking for whiptail...
e[K [✓] Checking for whiptail
[i] Performing reconfiguration, skipping download of local repos
[i] Resetting repository within /etc/.pihole......
e[K [✓] Resetting repository within /etc/.pihole...
[i] Resetting repository within /var/www/html/admin......
e[K [✓] Resetting repository within /var/www/html/admin...
[i] Main Dependency checks...
[i] Checking for cron...
e[K [✓] Checking for cron
[i] Checking for curl...
e[K [✓] Checking for curl
[i] Checking for dnsutils...
e[K [✓] Checking for dnsutils
[i] Checking for iputils-ping...
e[K [✓] Checking for iputils-ping
[i] Checking for lsof...
e[K [✓] Checking for lsof
[i] Checking for netcat...
e[K [✓] Checking for netcat
[i] Checking for psmisc...
e[K [✓] Checking for psmisc
[i] Checking for sudo...
e[K [✓] Checking for sudo
[i] Checking for unzip...
e[K [✓] Checking for unzip
[i] Checking for wget...
e[K [✓] Checking for wget
[i] Checking for idn2...
e[K [✓] Checking for idn2
[i] Checking for sqlite3...
e[K [✓] Checking for sqlite3
[i] Checking for libcap2-bin...
e[K [✓] Checking for libcap2-bin
[i] Checking for dns-root-data...
e[K [✓] Checking for dns-root-data
[i] Checking for resolvconf...
e[K [✓] Checking for resolvconf
[i] Checking for libcap2...
e[K [✓] Checking for libcap2
[i] Checking for lighttpd...
e[K [i] Checking for lighttpd (will be installed)
[i] Checking for php7.3-common...
e[K [✓] Checking for php7.3-common
[i] Checking for php7.3-cgi...
e[K [✓] Checking for php7.3-cgi
[i] Checking for php7.3-sqlite3...
e[K [✓] Checking for php7.3-sqlite3
Unable to complete update, please contact Pi-hole Support