I've searched and found similar issues, tried their solutions but even after an upgrade to
Pi-hole v5.1.2
Web Interface v5.1.1
FTL v5.2
Which initially failed due to OS recognition failure (Linux raspberrypi 4.1.18-v7+ #846 SMP Thu Feb 25 14:22:53 GMT 2016 armv7l GNU/Linux
), so took the advised solution: PIHOLE_SKIP_OS_CHECK=true sudo -E pihole -r
and reconfigured.
This process has failed with:
[i] Processing apt-get install(s) for: lighttpd php5-cgi php5-sqlite php5-xml php5-intl, please wait...
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E: Unable to locate package php5-xml
The system continues to resolve, but the dashboard appears thus:
Any suggestions gratefully received.