Problem with token in frontend editor

Hi,

thanks for this wonderful extensions. It is clearly the best in its category for Joomla.

I am hoping that you might be able to help me sort out ONE problem that I have found in the application.
I can easily add galleries from the backend using the SIGE PARAMETERS Button (i have set a token in the plugin).
But, when I click on the same SIGE PARAMETERS Button in the front end editor I always get this error before saving changes:
Token wrong!

Please help me solve this problem. What am I doing wrong? How do I set it for the frontend editor too?

thanks so much

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