To block the adds in your device kindly follow the below-mentioned steps:
1. Go to Device Setting >> App Management >> Show System Processes >> Chrome >> Storage Usage >> Clear Data
2. Go to Device Setting >> System Apps >> Browser >> AD Blocking >> AD Blocking >> Turn it off
3. Please check which app sends the ads and go to the app settings to off the notification.
4. Go to Google chrome>>Setting>>Site Settings>> Ads>> Disable
5. Go to Google chrome>>Setting>>Site Settings>>Pop ups>>Disable
In case you find any problem kindly do let us know via our official communication channels