error handling if one feature is buggy

[fuzzylogic2000]

Traceback (most recent call last):
  File "manage.py", line 10, in <module>
    execute_from_command_line(sys.argv)
  File "/home/django/django/lib/python3.6/site-packages/django/core/management/__init__.py", line 381, in execute_from_command_line
    utility.execute()
  File "/home/django/django/lib/python3.6/site-packages/django/core/management/__init__.py", line 375, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/home/django/django/lib/python3.6/site-packages/django/core/management/base.py", line 323, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/home/django/django/lib/python3.6/site-packages/django/core/management/base.py", line 364, in execute
    output = self.handle(*args, **options)
  File "/home/django/django/bplan/management/commands/load_bplan.py", line 298, in handle
    type = feature.get("spatial_type")
  File "/home/django/django/lib/python3.6/site-packages/django/contrib/gis/gdal/feature.py", line 108, in get
    return self[field_name].value
  File "/home/django/django/lib/python3.6/site-packages/django/contrib/gis/gdal/feature.py", line 37, in __getitem__
    i = self.index(index)
  File "/home/django/django/lib/python3.6/site-packages/django/contrib/gis/gdal/feature.py", line 114, in index
    raise IndexError('Invalid OFT field name given: %s.' % field_name)
IndexError: Invalid OFT field name given: spatial_type.

It happens from time to time that all bpland aren't loaded because there is one feature causing an error. This should be handeled, so that all other bplans are still loaded.