Can't run migrations

[amaccuish]

I think with the added CA_CUSTOM_APPS, an issue has been introduced and I can't run migrations.
The traceback I get is:

Traceback (most recent call last):
File "ca/manage.py", line 10, in
execute_from_command_line(sys.argv)
File "/usr/local/share/ca/alex/lib/python3.6/site-packages/django/core/management/init.py", line 371, in execute_from_command_line
utility.execute()
File "/usr/local/share/ca/alex/lib/python3.6/site-packages/django/core/management/init.py", line 347, in execute
django.setup()
File "/usr/local/share/ca/alex/lib/python3.6/site-packages/django/init.py", line 24, in setup
apps.populate(settings.INSTALLED_APPS)
File "/usr/local/share/ca/alex/lib/python3.6/site-packages/django/apps/registry.py", line 89, in populate
app_config = AppConfig.create(entry)
File "/usr/local/share/ca/alex/lib/python3.6/site-packages/django/apps/config.py", line 90, in create
module = import_module(entry)
File "/usr/local/share/ca/alex/lib/python3.6/importlib/init.py", line 117, in import_module
if name.startswith('.'):
AttributeError: 'list' object has no attribute 'startswith'