cacti 0.88b 無法開啟 "Graph Management"

log 出現 [error] "PHP message: PHP Fatal error: Cannot redeclare graph() in /home/cacti/graphs.php on line 1355" while reading response header from upstream
google Cannot redeclare graph() in /home/cacti/graphs.php on line 1355" while reading response header from upstream
參考這篇文章 https://forums.cacti.net/viewtopic.php?t=46455 # yum remove graphviz graphviz-php
# service php-fpm restart