EXPORT Post Process Upload to Dropbox

Hello, i’m trying to upload on Dropbox using the (working) .aepp file “UploadToSoundCloud” file (provided by Steinberg) as a template but it doesn’t work, showing me a “error 21” box.
I’ve just substituted every SoundCloud line with a Dropbox one and mantained the structure.
Furthermore i’ve seen that the script calls “uploadmanager.exe” as a bridge: is that the problem? Does Upload Manager only works with Soundcloud?
I’m pretty sure it’t me missing the point so i ask the more developer oriented people here: what i have to change in my (following)script?

<?xml version="1.0" encoding="UTF-8"?> Upload to Dropbox Bei Dropbox hochladen Envoyer vers Dropbox Upload su Dropbox Subir a Dropbox Dropboxにアップロード 上传到 Dropbox icons\Dropbox.png C:\Program Files (x86)\Common Files\Steinberg\Shared Components\Upload Manager\uploadmanager.exe "$PATH" true false false false true private true false

Nuendo 8.3 / Windows 10
Thanks a lot for your help :slight_smile: