Server Error after updating sidebar/about page

After updating a sidebar/about page on a grav skeleton running receptar theme i get these

Server Error

Sorry, something went terribly wrong!
400 - Template “sidebar/blog.html.twig” is not defined in “partials/sidebar.html.twig” at line 3.

Theme - Receptar

LOG -```
[2016-05-17 08:33:35] grav.CRITICAL: Template “sidebar/blog.html.twig” is not defined in “partials/sidebar.html.twig” at line 3. - Trace: #0 /var/www/html/andrew/blog/system/src/Grav/Common/Grav.php(186): Grav\Common\Twig\Twig->processSite(NULL) #1 /var/www/html/andrew/blog/vendor/pimple/pimple/src/Pimple/ p(113): Grav\Common\Grav::Grav\Common{closure}(Object(Grav\Common\Grav)) #2 /var/www/html/andrew/blog/system/src/Grav/Common/Grav.php(288): Pimple\Container->offsetGet(‘output’) #3 /var/www/html/andrew/blog/index.php(38): Grav\Common\Grav->process() #4 {main} [] []

Apparently your theme, in in partials/sidebar.html.twig tries to include sidebar/blog.html.twig which is not there. You can remove the include in the first place, or add an empty blog.html.twig file.