API Error on listing file commit

Hello,

Every time I try to list from the API v2 a file history on a feature branch, I get an HTML page with an unspecified error:

I tried the following format for the feature/teste branch:
https://api.bitbucket.org/2.0/repositories/workspace/repository/filehistory/feature/teste/file.sql?fields=values.next,values.path,values.commit.date

I Also tried the following URL:
https://api.bitbucket.org/2.0/repositories/workspace/repository/filehistory/feature%2Fteste/file.sql?fields=values.next,values.path,values.commit.dat
And it doesn’t work too.

Is this an error on API’s side?

Thank you