Quote from: BobRay at Sep 23, 2016, 03:13 AMIt could be an issue with PHP 7, or it could be a problem with the DB credentials in core/config/config.inc.php or the DB itself.
The message is saying that MODX couldn't retrieve the resource with the ID 1 from the database.
You might check the DB to make sure there is such a resource (in the modx_site_content table), and that it's published.
Thanks Bob!
However, I found that the modx_site_content table was not created. Any ideas how can I overcome this?