Advanced Export fail about osticket-plugin-archiver HOT 7 OPEN

class ArchiverPlugin extends Plugin {
    ...
    private function archive(Ticket $ticket) {
        ...
            // start dumping attachments:
            foreach ( $ticket->getThread ()->getEntries('') as $_entry ) {
                $entry = $ticket->getThread ()->getEntry($_entry['id']);
                foreach( $entry->getAttachments () as $a ){
                    $file = new AttachmentFile($a['attach_id']);
                    $this->copyFile ( $file, "$folder/attachment_{$a['name']}" );
                }
            }
        ...
    }
    ...
}

$folder = $path . @Format::slugify ( "/$dept/$user/{$ticket->getSubject ()}_{$ticket->getNumber ()}" );

$folder = $path 
    . '/' . @Format::slugify ($dept);
    . '/' . @Format::slugify ($user);
    . '/' . @Format::slugify ("{$ticket->getSubject ()}_{$ticket->getNumber ()}");

    private function copyFile(AttachmentFile $file, $dest) {
        try {
            $bk = $file->open ();
        } catch ( Exception $e ) {
            $this->log ( "Errors were encountered loading attachment" );
            return;
        }
        //  $bk = $file->open ();
        ...
    }