Having issues when I start most graphical programs. Simply just says

Fontconfig error: Cannot load default config file

I can confirm that /etc/fonts/fonts.conf exists and has the correct permissions.

-rw-r--r--   1 root root  5497 Jan 16 09:55 fonts.conf

I'm not getting any other information associated with this error, and searching hasn't provided any helpful information either.

What can I do to fix this?

running gedit, geany, chromium-browser, firefox, libreoffice...
Basically any graphical program that uses fonts

EDIT
using strace i've found the problem stems from here:

access("/data/jenkins/pms-deps-universal/BUILD_TAG/linux-ubuntu-i686/output/pms-depends-linux-ubuntu-i686-release-8400c3b/etc/fonts/fonts.conf", R_OK) = -1 ENOENT (No such file or directory)

write(2, "Fontconfig error: ", 18Fontconfig error: )      = 18

write(2, "Cannot load default config file", 31Cannot load default config file) = 31

I've never used Jenkins before, I'll try removing it and see what happens

sudo apt-get purge jenkins

This returns that jenkins is not installed...

I don't even have a /data/ partition.

How can I change the path for Fontconfig?