https://mattersoftesting.blog.gov.uk/mot-testing-service-instruction-guides/mot-testing-service-temporary-workarounds/finding-non-component-advisories/
Finding non-component advisories
There's a temporary problem where non-component advisories are currently missing from the service. For the time being, you should enter a manual advisory.
This is a known issue, is being fixed and we’d like to apologise for any inconvenience caused.