Biology VOCABULARY

Fatal error: Uncaught PDOException: SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '-10 , 10' at line 1 in /home/lukjunco/domains/lukjun.com/public_html/vocab/inc/f.php:51 Stack trace: #0 /home/lukjunco/domains/lukjun.com/public_html/vocab/inc/f.php(51): PDOStatement->execute() #1 /home/lukjunco/domains/lukjun.com/public_html/vocab/voc.php(383): _mysql_readtable('vo_bio_voc left...', '', 'limit -10 , 10') #2 {main} thrown in /home/lukjunco/domains/lukjun.com/public_html/vocab/inc/f.php on line 51