adminer access

I have secured my website with HTTPS, and it is working as expected.
i am trying to use Adminer.php for managing mysql DB and placed the adminer.php file in a subdirectory named adminer (var/www/html/adminer/adminer.php)
However, when I try to access Adminer using the URL https://example.com/adminer.php, I encounter a blank page.

        <Location "/adminer">
            ProxyPass http://localhost/adminer
            ProxyPassReverse http://localhost/adminer
            Require all granted
        </Location>
    </VirtualHost>
</IfModule>

for some reasons i am unable to post full config code here due to it gives me error forbidden.

How is this question related to Traccar server?

oh forget to write that its happing after enabling SSL and for some reason i am not able to use anything else besides traccar web portal