Two unit tests failing in dev branch

[matssa]

FAIL: test_create_event_hosted_by_boardmember (ntnui.apps.events.tests.test_add_event.Event_add)

Traceback (most recent call last):
File "/code/ntnui/apps/events/tests/test_add_event.py", line 112, in test_create_event_hosted_by_boardmember
return self.assertEqual(response.status_code, 201)
AssertionError: 400 != 201

AND

FAIL: test_create_event_hosted_by_NTNUI (ntnui.apps.events.tests.test_add_event.Event_add)

Traceback (most recent call last):
File "/code/ntnui/apps/events/tests/test_add_event.py", line 155, in test_create_event_hosted_by_NTNUI
return self.assertEqual(response.status_code, 201)
AssertionError: 400 != 201