If you are getting this error:
Field 'test' isn't an upload field!
when trying to upload in the WYSIWYG editor, uploads are not enabled.
Edit that Section Editor, modify the test field that is a WYSIWYG field, check the box to Allow Uploads and Save.
This will allow uploads.
If this doesn't work, send in a Support Request and we can take a look:
Damon Edis - interactivetools.com
Hire me! Save time by getting our experts to help with your project.