The school is accredited by the DEAC which is recognized by the US DoE. It's national accreditation which is less prestigious and not always "accepted" by regional accredited schools.

https://ope.ed.gov/dapip/#/institution-profile/233675

The Master's in education is recognized by International Baccalaureate (IB) which is a well regarded program. I'm not sure of the exact relationship as the program is new. (It just started this year.) However, it likely wouldn't be accepted by the various state education bodies for teaching licensing. (This is a guess based on my past experience in education.)