The problem is that you're using this plugin https://github.com/django-blog-zinnia/cmsplugin-zinnia which reset admin page here if you're set cmsplugin_zinnia.placeholder.EntryPlaceholder as ENTRY_BASE_MODEL.
As you see this code cuts the original fieldset and remove content field:
The problem is that you're using this plugin
https://github.com/django-blog-zinnia/cmsplugin-zinnia
which reset admin page here if you're setcmsplugin_zinnia.placeholder.EntryPlaceholder
asENTRY_BASE_MODEL
.As you see this code cuts the original fieldset and remove
content
field:So I see only one solution is to set another model as
ENTRY_BASE_MODEL
which you need to create:And finally set correct
settings.py
I hope this will help you :)
Note
I digged out why the hell they reset
fieldset
the original admin. This is explained here.