Hello, I installed a ads.txt plugin from Invision community and it completely broke the front end of my site, wondering how I can fix it so the header looks normal once again, I am using IPS focus Dimension 4.7.15 as my theme, wondering what I need to edit to make it look normal again? BTW the plugin I downloaded was from here. (source)

Will continue to try and fix until someone responds 

Using a different theme for now, seems to have only impacted the theme.

I will check with @Ryan Ashbrook to see if that file is still valid. It hasn't been updated since 2017, so may well not be. I would say however, if you are having issues with a 3rd party theme, you would need to contact the author of that theme for assistance. The plugin itself is for producing a robots.txt file, and shouldn't have any effect on themes on your site.

Just caught up with Ryan there. The file there is no longer relevant, so has been removed. It certainly wouldnt affect your theme though, as mentioned