Upfront do not start just saying "The Upfront editor may take a while to load"

Hi I can´t get the upfront editor to work :slight_frown:
I have tried to increase the limit according to https://premium.wpmudev.org/blog/increase-memory-limit/
The site is a old one that I wanted to convert to the Fixer theme. Hope you can see what i`m been missing :slight_smile: