Microsoft recently launched the New Microsoft Learn Educator Center (previously Microsoft Educator Center). It is a platform widely available to educators, school leaders, and training partners.
The New Microsoft Learn Educator Center is similar to Microsoft Educator Center(MEC) as it is packed with the same courses and learning paths. The only difference is that they have expanded their reach content-wise, with custom pathways geared toward enhancing professional skills which will allow students to better equip themselves with "21st-century skills" that will help them land a job in the ever-evolving market.
Through the platform, educators have access to free resources that will help them learn more about programs, development offerings, and Microsoft technologies which help enhance both teaching and learning practices. Microsoft's hope is to revolutionize the learning process through the vast resources available in the New Microsoft Learn Educator Center.
If you had acquired accolades through the Microsoft Educator Center platform, you should be able to access them by logging into the new platform using the same credentials you used on MEC. This should bring all your achievements current.