[bug] argument of type 'NoneType' is not iterable (spn_data["hostname"])

[p0dalirius]

Traceback (most recent call last):
  File "/workspace/GhostSPN/./GhostSPN.py", line 467, in <module>
    g.list_ghost_spns(
  File "/workspace/GhostSPN/./GhostSPN.py", line 168, in list_ghost_spns
    hosts_exists, wildcard_resolved = self.is_ghost_spn(userdata, spn)
                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/workspace/GhostSPN/./GhostSPN.py", line 210, in is_ghost_spn
    if "." not in spn_data["hostname"]:
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: argument of type 'NoneType' is not iterable