Accessibility for screen readers

Hello,

I use the dareboost service : Website testing and analysis service: speed, SEO, security and quality

It says:

3 empty elements can confuse screen readers
The < p >, < li >, < button >, < legend >, < caption >, < figcaption > and < quote > elements must not be empty
because if they are, some screen readers will have difficulty interpreting their presence.
Remove these empty elements from your code or decorate them with the aria-hidden attribute for screen readers to use.
ignore.

Exemple:<p aria-hidden="true"></p>

The following elements are empty:

<button type="button" id="cboxPrevious">
<button type="button" id="cboxNext">
<button type="button" id="cboxSlideshow">

It is possible to correct it to pass accessibility test ?

Best regards