Don’t Join Problem DonutSMP

Hello, I died on DonutSMP; even though I pressed the respawn button, I didn't respawn, so I pressed the button to return to the server list. When I try to rejoin the server, it gets stuck on the "Joining World" screen, and then, within 5–10 seconds, a "Disconnected" message appears.I can join other Minecraft servers, but I just can't join DonutSMP. I was using Lunar Client, but I switched to Vanilla—that didn't work either. I tried changing my DNS, restarting my computer, and restarting my modem, but nothing worked.