Whoops Error when update to ver 13.0.34

I have directory under spool/asterisk/sounds/custom/

When update to version 13.0.34 Whoops Error

Whoops \ Exception \ ErrorException (E_WARNING)
rename(/var/lib/asterisk/sounds/custom/update,/var/lib/asterisk/sounds/he/custom/update): Directory not empty
/var/www/html/admin/modules/recordings/install.php
	$sth->execute(array(implode('&',$filenames), $recording['id']));
}
 
if(file_exists($dir."/custom")) {
	$files = glob($dir."/custom/*");
	foreach($files as $file) {
		$parts = pathinfo($file);
		rename($file,$dir."/".$default."/custom/".$parts['filename']);
		FreePBX::Recordings()->addRecording($parts['filename'],"Migrated file","custom/".$parts['filename']);
	}