500 when trying to save settings

[choccyness]

The error is in your host logs, and is usually an illegal options directive in htaccess.

I've posted my entire htaccess above, and even if I delete the one in the parent directory, I still get the error. I've tried uninstalled and re-installing a few times in a few ways, but to no effect.

The only thing I can find in any of the logs when I make the request is:

Code:

999.999.999.999 - - [28/Sep/2017:22:27:20 +0100] "POST /admin/settings.php HTTP/1.1" 500 - "http://www.example.com/admin/settings.php" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:37.0) Gecko/20100101 Firefox/37.0"

edit1: The host looked in the log for me (HostPapa is actually fairly pro-active it seems!) and this is what's in it:

Code:

Request exceeded the limit of 10 internal redirects due to probable configuration error. Use 'LimitInternalRecursion' to increase the limit if necessary. Use 'LogLevel debug' to get a backtrace., referer: https://www.example.com/admin/settings.php

Any ideas what might be causing it?
There are no redirects behind the page to the best of my knowledge.

edit2: I've also tried culling the .htaccess of everything that might cause it, leaving just the below, but to no avail.

Code:

# override charset
AddDefaultCharset UTF-8


# Set the default handler.
DirectoryIndex index.php

# blocks direct access to the XML files - they hold all the data!
<Files ~ "\.xml$">
    <IfModule !mod_authz_core.c>
        Deny from all
    </IfModule>
    <IfModule mod_access_compat.c>
        Deny from all
    </IfModule>
    <IfModule mod_authz_core.c>
        <IfModule !mod_access_compat.c>
            Require all denied
        </IfModule>
    </IfModule>    
</Files>

<Files sitemap.xml>
    <IfModule !mod_authz_core.c>
        Allow from all
    </IfModule>
    <IfModule mod_access_compat.c>
        Allow from all
    </IfModule>
    <IfModule mod_authz_core.c>
        <IfModule !mod_access_compat.c>
            Require all granted
        </IfModule>
    </IfModule>    
</Files>