SQlite Error NS_ERROR_FAILURE

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PHP

SQLite

INSERT INTO rekorde (wo, vorname, nachname, ergebnis, alter, klasse, gender) 
		VALUES (:wo, :vorname, :nachname, :ergebnis, :alter, :klasse, :gender)", 
		array($_POST["where"],$_POST["pren"],$_POST["name"],$_POST["res"],$_POST["alter"],$_POST["klasse"],$_POST["gender"]));

This code produces the following error:
[ near "alter": syntax error ]
Exception Name: NS_ERROR_FAILURE
Exception Message: Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [mozIStorageConnection.createStatement]