Website will download instead of opening in browser

[admin]

My website will initiate a download instead of opening in the browser. I can access the login redirect and wp-admin however.

website is: www.keymoneyconcepts.com.au

My .htaccess file looks like the below:

<div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-js lang-js prettyprint-override">

# BEGIN WordPress
<IfModule mod_expires.c>
 ExpiresActive On
 ExpiresByType image/jpg "access plus 1 year"
 ExpiresByType image/jpeg "access plus 1 year"
 ExpiresByType image/gif "access plus 1 year"
 ExpiresByType image/png "access plus 1 year"
 ExpiresByType text/css "access plus 1 month"
 ExpiresByType application/pdf "access plus 1 month"
 ExpiresByType text/javascript "access plus 1 month"
 ExpiresByType image/x-icon "access plus 1 year"
 ExpiresDefault "access plus 1 weeks"
</IfModule>
Options -Indexes
<IfModule mod_rewrite.c>
 RewriteEngine On
 RewriteBase /
 RewriteRule ^/wp-content/endurance-page-cache/ - [L]
 RewriteCond %{REQUEST_METHOD} !POST
 RewriteCond %{QUERY_STRING} !.*=.*
 RewriteCond %{HTTP_COOKIE} !(wordpress_test_cookie|comment_author|wp\-postpass|wordpress_logged_in|wptouch_switch_toggle|wp_woocommerce_session_) [NC]
 RewriteCond %{DOCUMENT_ROOT}/wp-content/endurance-page-cache/$1/_index.html -f
 RewriteRule ^(.*)$ /wp-content/endurance-page-cache/$1/_index.html [L]
</IfModule>

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress

</div>
</div>


Would you have any suggestions?

Thanks