If you manage your DNS setup in Cloudflare, you can set it up yourself below, or you can just send it straight to the person who maintains your website.
Basically, there are two options, and we recommend this:
Set up an exception in Cloudflare so you allow access to Customers 1st:
Go to "Rules"
Choose "Configuration Rules"
Create a rule with the following definitions:
User Agent equals C1ST Hook
Choose "Browser Integrity Check" and turn this off
Choose "Security Level" and set it to "Essentially Off"
Option 2 is that you disable Cloudflare Security on the whole REST API:
Go to the Cloudflare control panel
Navigate to "Page Rules" in the menu
Click on "Create Page Rule"
In the field for URL, enter https://[url-til-jeres-shop]/wp-json/*
Click on "Add a setting"
Click on "Disable Security" in the dropdown
Select "Cache Level" in the dropdown and choose "Bypass" for the value
Click on "Save and Deploy Page Rule"