First dev release of the Production Checklist module
The Production Checklist module inherits from the Checklist API and is based on the active configuration of a Drupal 8 site. Its purpose is for site launch and maintenance.
The default Drupal 8 .htaccess provides +FollowSymLinks.
There is an old discussion about that on the Virtualmin forum.
A patch is under creation for Drupal 8. It changes the Options +FollowSymLinks
on the root .htaccess directory.
by
Options +SymLinksIfOwnerMatch
You should also change this on the sites/default/files .htaccess