Hi your topic was marked as spam somehow we filtered it today .
Please note that the free account will not work .
Vimeo does not supports uploading videos using free account through api .
you have purchase either plus or pro plan .
Secondly please check if your app has upload access .After creating app on vimoe you need to request for upload access from vimeo for your app.
If these are done or having issues with above steps please share your site url and admin credentials along with vimeo credentials in private reply to setup the app for you .