Error Invalid parameter number

[gravinos]

Hello i have this error in error log causate from the FileDownloadLink snippet:

PHP warning: PDOStatement::execute(): SQLSTATE[HY093]: Invalid parameter number: number of bound variables does not match number of tokens
[2020-04-06 14:50:23] (ERROR @ /home/public_html/core/xpdo/om/xpdoobject.class.php : 240) Error HY093 executing statement: 
Array
(
    [0] => HY093
    [1] => 
    [2] => 
)

what could be the problem?

Modx 2.7.3-pl
PHP Version 7.2.28
PDO Driver for MySQL: mysqlnd 5.0.12-dev

Thanks