Minecraft beta won't let me play the world with all the online players in the Mini Games,Let me play earlier and I bought a pack for it for 199 and I went back on it and it will not work. It says it's not copatible

All the mini games it will not load up. It let me play it for a little bit on certain ones earlier, but after I bought the pack it would not let me back on. And I want my money back or figure out a way to get it to work. But yeah, it's just not working.