apc_clear_cache

I was having trouble with Likes/Thanks not working and checked the error log to find Wed Sep 16 18:21:20 2015] [error] [client 96.40.125.225] PHP Fatal error: Call to undefined function apc_clear_cache() in /var/www/html/dbtech/vboptimise/includes/operators/apc.php on line 45, referer: Slava...