Error: 500 Internal Server Error

Sorry, the requested URL 'http://service.tartaglialab.com/page/catra-pid_group' caused an error:

Internal Server Error

Exception:

IOError(2, 'No such file or directory')

Traceback:

Traceback (most recent call last):
  File "/app/bottle.py", line 763, in _handle
    return route.call(**args)
  File "/app/bottle.py", line 1572, in wrapper
    rv = callback(*a, **ka)
  File "/app/bottle.py", line 3124, in wrapper
    result = func(*args, **kwargs)
  File "main.py", line 602, in render_page
    with open(os.path.join(SCRIPT_PATH, "definitions_pages", page_name+".yaml")) as page_file:
IOError: [Errno 2] No such file or directory: '/app/definitions_pages/catra-pid_group.yaml'