Can't play in my realm

I can't play in the realm I recently created. One of my friends that I invited is able to play normally, but I can't. I keep getting kicked, around 20 seconds in all the mobs and players freeze, appearing the following message:

Internal Exception: java.io.IOException: Se ha forzado la interrupción de una conexión existente por el host remoto

Please help with this issue as I can't play in my realm subscription