Parse error: syntax error, unexpected 'else' (T_ELSE) in C:\wamp

<?php

$bdd=new PDO('mysql:host=localhost;dbname=membres;charset=utf8','root','');

if (isset($_POST['forminscription']))
{
	$pseudo = htmlspecialchars($_POST['pseudo']);
	$mail = htmlspecialchars($_POST['mail']);
	$password1 = sha1($_POST['password']);
	$password2 = sha1($_POST['password']);
	
	if (!empty($_POST['pseudo'])AND!empty($_POST['mail'])AND!empty($_POST['password']))
   {

     $pseudolength = strlen($pseudo);
	if ($pseudolength <= 255)
	{
if (filter_var($mail, FILTER_VALIDATE_EMAIL))
{


	  
    if($password1== $password2)
    {
echo "nickel";
    }
else
{
	$erreur = "vos mot de passes ne correspondent pas";
}
	}
}
	else
	{
		$erreur = "Votre adresse mail n'est pas valide";
	}
	else
	{
		$erreur="Votre pseudo ne doit pas dépasser 255 caractères !";
	}
}
}

    
else
   {
	$erreur = "Tout les champs doivent être complété";
   }
}


?>











<DOCTYPE HTML>
<[/contents/498-html-langage html]>
<head>
<title> page d'inscription </title>
</head>
<body>

	<form ation="" method="post">
		<input type="text"  name="pseudo" id='pseudo' value="<?php if(isset($pseudo)) {eho $pseudo}?>"><br>
		<input type="email"  name="mail"><br>
		<input type="password" name="password"> mot de passe<br>
		<input type="password" name="password"> retapez mot de passe<br>
		<input type="submit" name='forminscription' value="envoyer">
	</form>
	<?php

	if(isset($erreur))

{
	echo '<font color= "red">' .$erreur."</font>";
}
?>








</body>
</html>