Пробую запустить скрипт анализа конфигурации MySQL - mysqltuner.pl. Скрипт в середине выдает ошибку:

Illegal division by zero at /usr/local/bin/mysqltuner.pl line 531, <> line 2 (#2)
(F) You tried to divide a number by 0. Either something was wrong in
your logic, or you need to put a conditional in to guard against
meaningless input.

Uncaught exception from user code:
Illegal division by zero at /usr/local/bin/mysqltuner.pl line 531, <> line 2. at /usr/local/bin/mysqltuner.pl line 531
main::calculations() called at /usr/local/bin/mysqltuner.pl line 885

В чем может быть дело? У меня FreeBSD.