Thanks for clarifying! This community post here has all of the details in regards to some recent changes that were made to the CMS Developer course.
On February 1st, we removed the course and temporarily replaced it with an updated non certification version of it. The temporary course does include some of the existing content and some of the content from the CMS themes quickstart lesson. Until the launch of the new certification course in the summer of 2021, there will be no new CMS Developer certifications awarded. We apologize for any inconvenience and recommend brushing up on the interim content and the documentation to be ready for the new certification.
Thanks for reaching out! Which certification are you trying to access? To clarify, are you unable to find it in the HubSpot Academy app? Is this a link to a certification you were rewarded?