Minecraft Realms (which i paid for) frequently keeps saying "realms (429)"

Every once in a while, either when im playing or when I get on to play, it disconnects me from the realm and says "Realms (429)" or "-429" in red. The only reason I decided to get a realm and not a server is because realms is less laggy. For something that I paid for, this is very inconvenient. Please fix this ASAP.