Flickr: NextScripts unable to post photos to Flickt

Hi,

I’m not able to publish photos on flickr. I followed instructions to set the account incl. authorization in WP, but at the end I got an error message:

Array ( [pgID] => [isPosted] => 0 [pDate] => 2015-04-24 14:39:08 [Error] => Image Error – Array ( [Error] => Your temporary folder or file (file – ) is not witable. Can’t upload images to Flickr ) )

I don’t have a temporary folder on my server – or I cannot see through Transmit. I have root access.

Any ideas what I can do to fix the problem?
best regards

https://wordpress.org/plugins/social-networks-auto-poster-facebook-twitter-g/