Set ad_guid to '' instead of None.
Set ad_guid to '' instead of None.

parksandwildlife/oim-cms,rockychen-dpaw/oim-cms,scottp-dpaw/oim-cms,parksandwildlife/oim-cms,scottp-dpaw/oim-cms,rockychen-dpaw/oim-cms,rockychen-dpaw/oim-cms,parksandwildlife/oim-cms,scottp-dpaw/oim-cms