Hi @inakipsiko,
Until a fix is implemented I have found the following workaround myself. Locate the file /wp-content/plugins/daext-helpful/public/class-daexthefu-public.php. Comment out line 214, so it looks like this: // ++self::$shortcode_counter;
Just be aware that whenever the plugin is updated this is overwritten and has to be performed again.
Hope it helps until a solution is available!