Multisite 401 API error

Hi – I’m trying to connect my API to woocommerce but am getting the error:

{“code”:”woocommerce_rest_cannot_view”,”message”:”Sorry, you cannot list resources.”,”data”:{“status”:401}}

When I use https://littlegreenshop.ie/wp-json/wc/v3/products?consumer_key=ck_fa470dbbfe9e2272e9263ce61533bd6aee34ce16&consumer_secret=cs_6dbd09fa0f68680fc2dc552a8de9861f10c317e9?it returns results so I know the key and the secret are correct.

But if I try to use the following URL in insomnia it gives me the error.
https://littlegreenshop.ie/wp-json/wc/v3/products/

The site is a multisite installation and .htaccess file contents are as follows:

# HTTPS forced by SG-Optimizer
<IfModule mod_rewrite.c>
    
    RewriteCond %{HTTP:X-Forwarded-Proto} !https
    RewriteCond %{HTTPS} off
    RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
</IfModule>
# END HTTPS
SetEnv PHPRC /home/customer/www/littlegreenshop.ie/public_html/php.ini
SetEnv HTTPS on

RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
 RewriteCond %{REQUEST_URI} !/(wp-content/uploads/.*)$

# add a trailing slash to /wp-admin
RewriteRule ^wp-admin$ wp-admin/ [R=301,L]

RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^ - [L]
RewriteRule ^(wp-(content|admin|includes).*) $1 [L]
RewriteRule ^(.*\.php)$ $1 [L]
RewriteRule . index.php [L]
# SGO Unset Vary
  Header unset Vary
# SGO Unset Vary END

Can anyone tell me what I might be doing wrong here? Or suggest how I could fix it?
Many thanks

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