No logs? Rewrite activated but not working?

edited January 2018 in Bug/Issue Reports

After installing Fusio using softaculous, I have issues with rewrite.
.htaccess file is correct (644) but rewrite rule is not working on profreehost.
Fusio project owner and softaculous seem to be stuck so far (

htaccess seems to work (Deny from All throws a 403) except for rewrite. Rewrite rules are working for Fusio on other hosts (see github).

So I tried displaying errors by altering php settings to display errors and added php_value display_errors on to .htaccess first line.
and I get:
500 Error, please check your php script / enable display_errors in your cpanel

Date dropdown in error logs is not opening (dead/empty dropdown), hence I can't download it to see errors thrown by apache and php.

Here's Fusio htaccess + php display error:

php_value display_errors on

RewriteEngine On
RewriteBase /

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule (.*) /index.php/$1 [L]

RewriteCond %{HTTP:Authorization} ^(.*)
RewriteRule .* - [e=HTTP_AUTHORIZATION:%1]

Any solution to download logs and about this rewrite issue?