I'm using SNAP Plugin social bookmark autoposter Version: 2.7.18 [Single Accounts Edition] on my website http://3dprintersforsales.com
But when I click green button Submit test post to wordpress, a popup display with message "Testing ...
Something went wrong - 500 : You are not allowed to do that.Something went wrong - 500 : You are not allowed to do that."
My username and password to http://3dprintersforsale.wordpress.com are correct.
Wordpress.com version number 3.7-alpha-25157.
I asked to the SNAP Plugin developer and they said this error means that wordpress.com doesn't like what are you doing for it's internal reasons.
Please help me, thank you.