Are there many reports of virus attacks from Addictinggames.com?

I have Avira Antivirus (free version) and i got around 6-10 virus detections today from avira, dont remember the folders they are in though, i had addictinggames.com open for 4 hours because i was in the middle of a game and i had to go somewhere and i didnt think i could save my progress so i left it open until i came back, so when i came back i started playing again then my dad goes on the computer and goes to check something from the USTA official site (tennis site) so i dont know where the viruses came from