[Revan]

It will work without it, because it sets reporterror to 0 before querying the table.
To make it better, do the follwoing edits to warn_install_setting:
Add after the kill_setting:

PHP Code:

// This function queries a table to check if it exists
function verify_table_exists($table)
{
    global $DB_site;
    
    if (empty($table))
    {
        return false;
    }
    
    $DB_site->reporterror = 0;
    $DB_site->query("SELECT COUNT(*) AS count FROM " . TABLE_PREFIX . "$table");
    $DB_site->reporterror = 1;
    return true;
} 


find

PHP Code:

$custom = true;
    $DB_site->reporterror = 0;
    $custset = $DB_site->query_first("SELECT * FROM " . TABLE_PREFIX . "warning_options");
    $DB_site->reporterror = 1; 


replace with

PHP Code:

    $custom = false;
    if (verify_table_exists('warning_options'))
    {
        $custom = true;
    }