Gtm not loading (blocked by ORB) on subdomain

Google Tag Manager Server Container
1

Chrome is blocking loading the GTM js from my subdomain https://sst.kohlanta.tours, apparently due to a cross-origin issue.According to GPT this is because headers are being sent incorrectly. WHat can I do to fix this?

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Hi Wolter,

The error is caused by the fact that you specified your server GTM ID (GTM-NDLM4QRP)instead of Web GTM ID when generating a custom loader code. That is why you see an error in the response, as server GTM cannot be loaded to your website. It must be Web GTM.
When generating custom loader code or if you are using our WordPress plugin to add custom loader code - specify the Web GTM ID.