@gh0st0125 More than likely that site is compromised and generating fake notifications. The desire is that you will click on the links or call the numbers in those notifications and open your device up to all types of malware and data loss.
Remove any suspicious apps/extensions. Or even anything that you have installed recently but seems safe. Malware can look like a useful calculator or file utility but hide it's true intention.
Scan for malware. It looks like you have some type of virus protection installed.
If all else fails, back up your data as best as you can and then do a factory reset.
