Bug with internal exception.

Always when I'm joining realms worlds, I always getting kicked. "Internal Exception/Disconnected." With my internet all is good. Every 15 secodns, I'm getting kicked, on servers of minecraft all is good, but in realms not so good. I'm like levitating and I sometimes losing control at blocks, I can break them, but frame of breaking not dissapearing and in tab my head like bold without hair on front of head.

My ping on realms always falling, but on the servers of minecraft its not falling.