And should I worry about maybe some malware could have been injected to my computer or accessed my files because I did this on safari without any VPN or proxy.
Usually this error message means that something is wrong with the server.
acording to this site: https://www.toxigon.com/websites-like-tor2web-faster/
First, I would not recommend using tor2web for visiting onion websites, use the tor browser which can be downloaded for Windows, Mac OS X, and Linux here: https://www.torproject.org/download/download
Using tor2rweb can result in huge security issues as it does not hide your ip address from the website. I tried using it once and I could not get to any websites whatsoever with it.
If you go there in the tor browser and it still does not load, either the website was shut down or is temporarily closed, which on onion services does happen a lot.