Totally open ntopng on the web

[fake]

I'm confused by what this is supposed to be, is it a test setup or by mistake?
http://176.74.139.133:3000/
I think it belongs to the website soubosonohy.cz
I wish I understood ntopng better because I have no idea what I'm looking at. I just clicked on restart to see if I can do anything and it said it restarted it, that's all I know lol.

[fake]

Btw. one other weird thing, I just checked on my own ntopng in my local network and I see this:
Host wifi.soubosonohy.cz is under SYN Scan [54 > 30 SYN received]

and:
Host 192.168.99.191 is a SYN Scan attacker [54 > 50 SYN sent]

I'm a little confused, is it bad that I went to this website now?