```ruby
class EventSerializer < ActiveModel::Serializer
  attributes :id, :title, :event_type, :start_time, :end_time, :start_date, :end_date, :description, :address, :skills_needed, :minimum_age, :url

  has_one :cause
end
```

Remove event_type attribute causing AMS to fail
user
```ruby
class EventSerializer < ActiveModel::Serializer
  attributes :id, :title, :start_time, :end_time, :start_date, :end_date, :description, :address, :skills_needed, :minimum_age, :url

  has_one :cause
end
```
assistant