I get the following fatal error message if i run the vBShop Lottery Processes any lotteries running task in the Scheduled Task Manager

Fatal error: Cannot redeclare fetch_microtime_difference() (previously declared in /home/xxxxxxxx/xxxxxxx/xxxxxxx.COM/includes/functions_misc.php:15) in /home/xxxxxxxx/xxxxxxx/xxxxxxx.COM/includes/functions_misc.php on line 21
