Typically, the main reason is that Cloudflare automatically turns on proxying, both on the primary domain and on the domain created to be added to AdsBridge. The enabled proxy status in Cloudflare affects the stability of the domain and technically makes it impossible to keep everything under control when adding a domain to AdsBridge. For this reason, in order for the added domain to work correctly in AdsBridge, you must deactivate Proxy status. An example of what the setup should look like:
Name: subdomain name (e.g. www). It is important!
Content: system domain from the tracker, located in the Section Domains. Typed without https
Proxy status: DNS only
Next, in the Domains section of the tracker you add the domain from the record in the following form: example, www.domain.com