Searching of - parents' origin

Fatal error: Uncaught mysqli_sql_exception: 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 'origin', ''))) / LENGTH('parents' origin') AS word_count FROM t_files OR...' at line 1 in /home/sciencet/domains/corpuslegislation.uz/public_html/settings.php:195 Stack trace: #0 /home/sciencet/domains/corpuslegislation.uz/public_html/settings.php(195): mysqli_query() #1 /home/sciencet/domains/corpuslegislation.uz/public_html/search.php(56): top_source_search() #2 {main} thrown in /home/sciencet/domains/corpuslegislation.uz/public_html/settings.php on line 195