Pihole web admin issue

Help
1

Please follow the below template, it will help us to help you!

Expected Behaviour:

Functional web admin UI w/ data.

Actual Behaviour:

No data (e.g. '---' in the colored boxes and the graphs are grayed out on the Dashboard), only some parts working (e.g. Settings, Update Gravity) , error message pop-up text below.

Debug Token:

https://tricorder.pi-hole.net/qd75bbua27

I'm getting the following error message when clicking on Query Log, Long-term Data / Query Log and Network:

> An unknown error occured while loading the data.
>

> Fatal error: Uncaught Error: Call to undefined function json_encode() in /var/www/html/admin/api.php:139
> Stack trace:
> #0 {main}
> thrown in /var/www/html/admin/api.php on line 139

2

Try sudo apt install php7.0-json

3

Thanks for the quick reply.

After sudo apt install php7.0-json

Reading state information... Done
php7.0-json is already the newest version (7.0.33-0+deb9u3).
php7.0-json set to manually installed.
The following packages were automatically installed and are no longer required:
coinor-libipopt1v5 libmumps-seq-4.10.0 libraw15 realpath
Use 'sudo apt autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 38 not upgraded.

No change in the web admin behavior.

4

Bump... has anyone else had this issue or have any additional suggestions on how to resolve it?

Thanks!

5

Looks like you have a lot of updates to apply. Run sudo apt update && sudo apt upgrade and see if the updated packages solves the issue.

6

Ran the update, rebooted and am still getting the same error message and no data in the admin UI.

7

Make sure you are using the right PHP version (if using 5, you will need to install the PHP 5 version of the JSON library).

8

That's just the hint I needed... after a bit of searching the following worked:

sudo apt purge php7.0-json php7.0-sqlite3
sudo apt install php7.0-json php7.0-sqlite3
sudo apt install --reinstall php7.0-cli php7.0-cgi
sudo phpenmod json sqlite3
sudo service lighttpd restart

The 'Solution' from the following thread:

Thanks for the help everyone!

2 Likes
9

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