PHP 8 - Fatal error LAN_PLUGIN_DOWNLOAD_NAME in comment's search

[Jimmi08]

Bug Description

Testing searching

Fatal error: Uncaught Error: Undefined constant "LAN_PLUGIN_DOWNLOAD_NAME" in C:\xampp\htdocs\e107-ayroui\e107_handlers\search\comments_download.php:13 Stack trace: #0 C:\xampp\htdocs\e107-ayroui\e107_handlers\search\search_comment.php(40): require_once() #1 C:\xampp\htdocs\e107-ayroui\search.php(820): require_once('C:\\xampp\\htdocs...') #2 C:\xampp\htdocs\e107-ayroui\search.php(1200): search_front->renderResults() #3 {main} thrown in C:\xampp\htdocs\e107-ayroui\e107_handlers\search\comments_download.php on line 13

How to Reproduce

Download plugin is not installed
Comments are allowed for searching

PHP 8, localhost, xampp