If your using the TT themes for HTracker will will receive that error you need to add <?=license();?> into your theme footer.php
or
remove the function fron backend/functions.php
Code:
function checker(){
GLOBAL $site_config, $THEME;
$file = file_get_contents("themes/$THEME/footer.php");
if(!strpos($file, "license")) {
show_error_msg("Warning!", "Copyright removed or changed ");
}
}
Or remove the checker() from these files
admincp.php
backend/functions.php
download.php
search.php
torrents-today.php
torrents.php