The popup window while searching in Google Images

Hello,
I have a lot of troubles with browsing the internet while using Avast. The antivirus started randomly blocking different websites, even some channels on YouTube. But one thing is really weird about this all…
It has happened to me more than three times. While looking at some images of my favourite singer on Google Images (The actual Google images, not any fake website, I’m sure about it. I also ONLY used Google Images, I did not open any link there) an Avast window has popped up. It said they have blocked one site I’m sure I haven’t been on before and that it is URL:Phishing. I tried searching for the name of the blocked site with Avast URL:Phishing, but all the sites were the bad ones and when I tried opening it ( I believe you that you will block any possible attacks) and the windows popped up again. Could it be some mistake?
I also searched only for the name of the site and I did not open those links, but that window has popped up again. (see the photo)
I am using Google Chrome, and Windows 10.
Could it be any virus? It would be amazing if you answered as soon as possible.

Thank you very much,
BlueberryCZ.
The image: https://imgur.com/a/NPPccvT

And again, I searched in the results. I found their Twitter account. I opened it and tried the link to their official website… And here we go, the pop up, but this time it’s different… https://imgur.com/a/Q4caD0Y I do not know what to think about it…

Hi, this is caused by a false positive and will be fixed in the next streaming update (a couple of minutes).
Honza

Thank you very much!
I still have some unanswered questions…
So the website is actually harmless? Why did it pop up when I have never been on the site? Is downloading/copying pictures from Google Images safe?
Thanks for your time, I have actually worried. c:

Yes, it is actually harmless.

The data from that site is loaded even within Google search. In other words, google search uses the data from that site, which is why Avast tries to stop that when it thinks it could be malicious.

Generally yes, but you have to consider that Google Images only shows you content from different domains.

Thanks so much. Have a nice day.