I tried to create some apps for test. FB returned errors, and now I have un-deletable apps on my page. The system returns a blank page when I select delete app. Anyone with this problem?

I should be able to contact FB support, but FB says I need to be a developer of an app that lived for 24 hours.

The above happened when I was trying to create an app that can post to groups, so advice on that also wanted. Even when using API explorer, I can't even request access permissions such as publish_to_groups.