Error retrieving information from server. DF-DFERH-01

Hello!

Traceback (most recent call last):
  File "/scripts/get_top_apps_by_cat.py", line 57, in <module>
    top_apps = server.list(sampleCat)
  File "/home/developer/workspace/gpapi/googleplay.py", line 520, in list
    data = self.executeRequestApi2(path)
  File "/home/developer/workspace/gpapi/googleplay.py", line 370, in executeRequestApi2
    raise RequestError(message.commands.displayErrorMessage)
gpapi.googleplay.RequestError: 'Error retrieving information from server. DF-DFERH-01'

It gives me this error when I'm trying to use the list function only. It works for the browse and home functions.
I'm using a different gsfId and authSubToken everytime I run my script and I already changed the device name.
Can someone help me?

Edit:

I found out that browse function is doing the same thing when I pass an subcategory with spaces between words, when I remove the spaces it works!