One address for everything: freehit@protonmail.com.
Tell us which match, which quality you picked, what phone and browser you are on, and the words the player showed when it gave up. With those four things we can usually find the cause the same day.
If material reachable through freehit.eu infringes a right you hold, send what the material is, where on the site it shows, which right is affected and a way to reply to you. The Terms say how notices are handled.
Questions about personal data, and requests under data-protection law, go to the same address. The Privacy Policy lists what the site handles.