Screen time saying 30+ hours a day and untrusted google chrome

I’ve noticed since last Sunday (4 days ago) at about midday my screentime has started to say that i was using my devices for all 24 hours of every day which isn’t the case and combining it with my real screen time giving me 30-33 hour per day ‘averages’? On top of this a supposed ‘google chrome’ has also showed up as one of my most used apps which Apple is saying “is not trusted and may be impersonating google chrome” despite me not having google chrome downloaded on my phone? Please help!