Hi Nae.
Thanks for letting us know about your issue.
If you register the plugin (it’s free), then you’ll see a Hide on These Pages text area in the sharing sidebar configuration page. There you can enter URLs or URL patterns on which the tool should be hidden. You can register the plugin by going to the plugin’s Home settings page and either logging into your AddThis account, or creating a new one.
Unfortunately, we can’t support hiding this tool by type of page. If a user wants AddThis JavaScript added into the header of their page, this is done before we can determine what kind of page is being rendered.
Thanks,
Julka