Statistics - Season 2

Fatal error: Uncaught mysqli_sql_exception: Column 'PlayerRank' in order clause is ambiguous in /var/www/000-fns/fns.php:31 Stack trace: #0 /var/www/000-fns/fns.php(31): mysqli->query() #1 /var/www/frdl.ca/fns/fns_frdl.php(525): db() #2 /var/www/frdl.ca/pages/statistics.php(34): make_statistics() #3 /var/www/asdl.ca/index.php(55): require_once('...') #4 {main} thrown in /var/www/000-fns/fns.php on line 31