Syntax error when i try to insert into table : <h1>My Table</h1>

<pre><code>CREATE TABLE IF NOT EXISTS `contas` (
  `cod_conta` int(11) NOT NULL AUTO_INCREMENT,
  `cod_char` int(9) NOT NULL,
  `username` varchar(180) NOT NULL,
  `password` varchar(180) NOT NULL,
  `email` varchar(180) NOT NULL,
  `datacc` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  `adm` int(1) NOT NULL DEFAULT '0',
  PRIMARY KEY (`cod_conta`)
) ENGINE=InnoDB  DEFAULT CHARSET
</code></pre>

<h1>Insert SQL</h1>

<pre><code>&gt; INSERT INTO 'contas'('cod_char','username','password','email') VALUES (2,'sdgsd','186672cc13','aaa')
</code></pre>

<h1>Error</h1>

<blockquote>
  <p>1064 - Erreur de syntaxe prÃ¨s de
  ''contas'('cod_char','username','password','email') VALUES</p>
</blockquote>
