Event is displayed in the Game detail while deleted

**Link to the game detail:**
http://larpovadatabaze.cz/larp/ostrov/cs/54407
**Screenshot:**
![image](https://user-images.githubusercontent.com/4849644/122371763-65672280-cf60-11eb-943e-c53b82857c20.png)
**DB record:**
![image](https://user-images.githubusercontent.com/4849644/122371940-8e87b300-cf60-11eb-9010-e89a220aa245.png)

