Bloques personalizados no me cargan los script

Quiero agregar un Slideshow automático dentro de un bloque personalizado, pero no me toma el script, que debo de hacer? ayuda por favor… Este es el codigo del slideshow:

Hello Andres,

The <script> tag is disallowed in custom blocks due to security issues, so JavaScript cannot be directly embedded into custom blocks. I recommend looking into a Bootstrap carousel instead. Alternatively, at your own risk, you might allow <script> in config.inc.php/HTMLPurifier as described in this forum thread.

You can enable the customHeader plugin to add the script there in the footer.