Hello,
First of all, thank you for your purchase.
I am sorry, but because of the latest LinkedIn changes, they no longer allow the importing of LinkedIn posts to WordPress, as they removed support for this feature from their API. Because of this LinkedIn limitation, the plugin is able only to post to LinkedIn, not the other way around. I am sorry for this.
If you no longer want to use the plugin, i understand, in this case, please make a refund request for it, here: https://codecanyon.net/refund_requests/new
Regards, Szabi – CodeRevolution.