Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[42S22]: Column not found: 1054 Unknown column 'reason' in 'field list'' in C:\xampp\htdocs\pot\OTS_AccountBan.php:55 Stack trace: #0 C:\xampp\htdocs\pot\OTS_AccountBan.php(55): PDO->query('SELECT `id`, `t...') #1 C:\xampp\htdocs\pot\OTS_Account.php(935): OTS_AccountBan->find('1') #2 C:\xampp\htdocs\accountmanagement.php(31): OTS_Account->isBanned() #3 C:\xampp\htdocs\index.php(145): include('C:\xampp\htdocs...') #4 {main} thrown in C:\xampp\htdocs\pot\OTS_AccountBan.php on line 55

Provavelmente é porque na sua database não tem a coluna 'reason' na tabela 'bans'

ta e como coloco ?

Use o comando no phpmyadmin:

ALTER TABLE `bans` ADD `reason` INT UNSIGNED NOT NULL DEFAULT 0;

duvida sanada! Obrigado!