Status > Monitoring: Call to undefined function rrd_fetch() in rrd_fetch_json.php
Some users are getting the following error in their crash reports:
PHP Fatal error: Call to undefined function rrd_fetch() in /usr/local/www/rrd_fetch_json.php
When asked to run "pkg info|grep rrd" it shows both pecl-rrd-1.1.3_2 and rrdtool-1.5.5_1.
User abu_cwarky pointed out that his /usr/local/etc/php/extensions.ini file was empty and he was able to fix it by manually putting the extensions in.
User peter808 stated that he didn't get the error when he tried upgrading from 2.2 to 2.3, but got the error when doing a fresh install.
User NOYB has stated that this has happened to him a couple time after crashes, but he just fixed it by rolling back his snapshot.