Unable to reply, edit or delete an annotation from Annotations tab at bottom of Page

Steps to reproduce:
1. Go to the Page Elements administration section and set "Show document annotations" to Yes. This is required in order to reproduce the problem.
2. Add a annotation to a page
3. The More Actions menu has two Annotations entries. Select the first one (the one below the Comments entry).
4. Try to reply, edit or delete the annotation

None of the above options are working. Also, for the Edit and Delete a error is thrown. See the picture attached.