Cannot access web admin

Help
1

Actual Behaviour:

My system (Linux Mint) ran short on disk and I had pihole database problems. I've solved all of that with cleanup and repairs etc. However I still can't get to admin page:

  1. Debug log erroneous reports imminent shortage of disk on /. Yet this is my status:
Filesystem     1K-blocks     Used Available Use% Mounted on

tmpfs             389368     1656    387712   1% /run

efivarfs              64       14        46  24% /sys/firmware/efi/efivars

/dev/sda2      238737052 87965616 138571400  39% /

tmpfs            1946836     7852   1938984   1% /dev/shm

tmpfs               5120        8      5112   1% /run/lock

/dev/sdb1      306550692 17025688 273880080   6% /media/disk

/dev/sda1         523244     6320    516924   2% /boot/efi

tmpfs             389364      188    389176   1% /run/user/1000

  1. webserver is having problems that pinhole - r is not correcting. Webserver.log say:
    [2026-07-18 16:33:42.529 CDT 1143] Initializing HTTP server on ports "80o,443os,[::]:80o,[::]:443os"

    [2026-07-18 16:33:42.531 CDT 1143] Error initializing SSL context

Debug Token:

https://tricorder.pi-hole.net/uAjoj5sX/

2

Apparently the certificates created by Pi-hole web server are damaged, or can't be opened.

Try to delete the certificate files (/etc/pihole/tls.crt, /etc/pihole/tls.pem and /etc/pihole/tls_ca.crt) and then restart Pi-hole service with sudo systemctl restart pihole-FTL.service. This will force Pi-hole to create new certificate files.

3

BadaBoomBadaBing. Well diagnosed and solved. Thank you so much for the quick response and exact instructions.

I like that pihole is resilient enough that key files can be deleted and it recreates what it needs.

Cheers!

Dave