Can't see the page with the members of a tribe (white screen)

Eroberer der Welt

Guest
  1. Summary of the issue (title of the post)
    Can't see the page with the members of a tribe (white screen).
  2. Overview of the bug (description):
    I see only a white screen when I click at the button Members at the profile of any tribe. Example
  3. Steps to reproduce:
    1. Go to the public profile of any tribe.
    2. Click at the button Members.
    3. You will see a white screen.
  4. Reproduction rate (Every time? Sometimes?):
    Every time.
  5. Browser and Version:
    Firefox 33.1
  6. Visual Reference if available (Screenshot) please put them in a spoiler.:
    /
  7. Player name and market for rewards:
    Eroberer der Welt (de)