You might be seeing an "UpViral" app link on shared Facebook posts from participants which links to an UpViral demo page:

Don't be alarmed - this is due to the participants using the UpViral share buttons to share your campaign on Facebook. Since it's the UpViral application which executes this action, the UpViral link is automatically added on top of the post. However, if your participants click on the image you've uploaded or the link below your image, they will get taken to your lead capture as normal. 

In case you want to make sure that participants do not share with the UpViral link on the Facebook post, they would need to share your campaign by copying and pasting your campaign URL and creating a Facebook post manually (instead of clicking on the share buttons) so that it appears without the UpViral link:

You can do this by creating a custom action that instructs them to share by sharing the campaign URL. Here's an article on creating custom actions:

How to get your support tickets resolved faster
Statistics have shown us that the more you tell us when you report an issue, the faster we solve that ticket. So...
1 - If you have screengrabs, please include them. A picture is worth a thousand words.
2 - If you have recorded a video showing the issue you're having, please include that as well. A video is worth a million words.
We recommend a free service called Loom for creating these videos. (this is a link to
3 - To speed up ticket resolution, follow these useful tips How to Write the Perfect Support Ticket (That Gets Results Fast)