What is Advanced Mac Cleaner?

Also, this Advanced Mac cleaner - I have read here that ppl say its a scam - is there a way to block this?

Have you actually installed this garbage, or are these just scary sounding ads that pop up while you're using your browser?

There are only two apps experienced users recommend for Macs. MalwareBytes for Mac and EtreCheck. These links are each directly to the respective developer's sites. Do not even think about downloading them from anywhere else.

From what you describe, I would suggest you first run EtreCheck. When it's finished, copy/paste the full report here. All personal information is automatically redacted by EtreCheck. All we'll see is relevant information, which is what type of Mac you have, amount of RAM installed, etc., and the most important part, what processes are running. That will show whether or not your Mac is plagued with adware or other junk.

MalwareBytes focuses on finding adware, ransomware and other junk that shouldn't be on your Mac. When it's done searching, it will show a list of anything it finds and offers to remove it. The app never just deletes things without your okay.