Hi @mariadelmar ,

If I understood correctly, you have an account in Databricks Free Edition and you would also like to log in to the Community Edition.
Now, if you did not previously have a registered account in the Community Edition (before the Free Edition was introduced), you will no longer be able to create an account in the Community Edition. This has been blocked because the Community Edition will soon be completely phased out.

As a workaround for your master's degree work, you can use docker container with pyspark. It will give you even more possibilites than community edition (which is pretty limited and you have single node cluster).