400 Errors when hitting API endpoint alpha/site

Hello! I am getting 400 errors when hitting the piefed.social. Hitting other piefed instances appear to work.

The exact error I get is:

    
{"code":400,"message":"{'my_user': {'instance_blocks': {0: {'site': ['Missing data for required field.']}}}}","status":"Bad Request"}

  

As an example I get this error when I make a GET request to https://piefed.social/api/alpha/site.

Note that I am making with request without an Authorization header.

Update

It seems that only alpha/site endpoint is broken. I can GET https://piefed.social/api/alpha/federated_instances just fine.