Can't update pages with color section

Since this morning I can’t update any pages of my site with the Avia element “color section”.
When i click update button, wordpress redirect me to a 404 page.
I try to create a new page, without color section, and all element work properly.

I use Enfold 3.4.7 and wordpress 4.4

UPDATE: Same issue adding/removing element in “easy slider”

• This topic was modified 8 years, 10 months ago by mgproget_1. Reason: additional info