Aaaarrrrgh.
Oy. “Everyday” is an adjective, e.g. “an everyday occurrence” is something that occurs, well, every day. Which is what should have been written in the above headline, but Chief Editor Spell-Check doesn’t recognize the difference.
Fucking illiterate assholes.
Spellcheck (and its brother, Autocomplete) is the work of the Devil, and whoever invented it should go straight to Hello.