Settings Cannot Be Edited in Sub Domains in Multi Site

And please mention the following:

– The plugin whose settings you’re trying to edit

SerpShaker (Shaker Pages)

– What the settings in question are

The Shortcodes

– The subsite where you’re trying to edit the settings

bedfordshire.localplumber.co

Basically I go to save a shortcode and it says it has been successful, but nothing has been saved.

I’ve enabled support.

Help needed!