Hi @iamkingsleyf,
This is usually caused by using the plugin incorrectly – I think we cover this very question in the FAQ if I am not mistaken. But this is often caused by clicking the share button in the metabox as shown in your screenshot, and then publishing the post/page – this action would share the post/page twice. So what I am saying is, there’s no need to click the share button in the metabox unless you wish to share the post twice. Because when you publish the post/page this will be a trigger our plugin will use to share to LinkedIn – hence why it’s called autopublish. I hope that helps ??