Im currently writing an app using the Stack Exchange API.

Today I wanted to rework the login component, but after signing in I get the following message:
Application must have a registerad Stack Apps post to write

That kinda confused me because I used this app one day ago. So I went to my post page and the post was gone, my App is still registered under the Manage your applications page.

So my questions are:

• Why is my app post deleted?
• Should I just create a new post go got API access?