Joomla Plugin PHP 7.3 - Warning: preg_match(): Compilation failed simple_html_dom.php

Hi, since I've upgraded PHP to 7.3, several warning lines are shown on my joomla site (with Display errors on, of course):

Many lines containing "Warning: preg_match(): Compilation failed: invalid range in character class at offset 4 in mysitepath/plugins/system/iubenda/iubenda-cookie-class/simple_html_dom.php on line 1375"

A couple of lines containing "Warning: Invalid argument supplied for foreach() in mysitepath/plugins/system/iubenda/iubenda-cookie-class\simple_html_dom.php on line 693"

Plugin version is 1.2.5

Any help?

Thank you very much
Kind regards