Solved with commenting out
<FilesMatch "\.php$">
Require all denied
</FilesMatch>
per this: 403 Error after Mautic 3.3.5 update - #5 by rcheesley
Solved with commenting out
<FilesMatch "\.php$">
Require all denied
</FilesMatch>
per this: 403 Error after Mautic 3.3.5 update - #5 by rcheesley