"Ensure ad-blockers are disabled and try reloading the page." when enabling Data Explorer

I get what jokingly I called “blue screen” - I get Oops after refreshing the page, I started a tread in support but got little luck there and so I came here.
I only can bring the site back to normal by safe-mode and then disabling the plugin. I reproduce that with fresh, clean browser(s) with no extensions, no ad-blockers, a no other plugins neither.