Some depreciation report php 8.5

Deprecated: Using null as an array offset is deprecated, use an empty string instead in /home/httpd/site/administrator/components/com_easydiscuss/includes/easydiscuss.php on line 4271

Deprecated: Using null as an array offset is deprecated, use an empty string instead in /home/httpd/site/administrator/components/com_easydiscuss/includes/easydiscuss.php on line 4281