just recently an error started appearing on our website
Warning: is_dir(): open_basedir restriction in effect. File(/) is not within the allowed path(s): (/nfsmnt/:/data/:/usr/php74/:/usr/bin/:/apachetmp:/tmp/:/var/tmp/:/dev/urandom:/usr/lib/x86_64-linux-gnu/ImageMagick-6.8.9/bin-Q16/:/usr/local/bin/:/etc/ssl/certs/ca-certificates.crt) in /data/2/9/29834876-2bd6-4568-b533-3ad984e8f3da/gabionweltaustria.at/sub/new/wp-includes/functions.php on line 2008
After short troubleshooting it looks like it's caused by some kind of conflict in the theme. When I switch to the default theme no error shows.
Can you advise on what it is and how to resolve it?