Cannot Opt-In to Adds

I have a laptop with two user profiles that I switch between regularly. I had to clear my browser cache on one profile and now cannot opt-in to ads or sign in to my Brave account. I click the on button for ads and it instantly resets to off. I am still signed in on my other user profile on the same laptop. My browser version is up-to-date V1.30.89

Please advise.