Malware Scanner Makes My Computer Crash

Hi,

I have a problem with Malware Scanner which makes my Chrome and whole computer crash, making it totally unresponsive.

I also tried on my smartphone and it’s the same.

As soon as I click “pause scan”, everything goes back to normal.
I really don’t understand as the processes should be on server side, not on my browser right?

Any clues on what could be happening?
It seems to be happening with “Signature analysis” and “Heuristic analaysis”.

Thanks in advance for your help.