My website was accessible via Webmaster tools, but after upgrading to 3.0.7 if I do a ‘fetch as google’ it comes up with ‘unreachable’. If I then switch the theme to ‘twenty seventeen’, it works fine.
All WP versions and plugins are up to date, and running PHP 7.0.
Any documents outside of WP are being indexed, just not pages within WordPress, and the robots.txt Tester comes up as ‘allowed’.
Sorry!
We have just updated the theme version 3.0.7 to add the Privacy Policy page in the footer and there is no any changes in code that Google blocked from indexing the site that use this theme.
May it was some plugin conflict. You can try deactivating plugins one by one.