There is a avatar item by minecraft the causes the game to be unplayable

​ I've tested doing this without the Avatar item and everything works just as it should but as soon as I put on the aquarium tank from the furniture starter pack in the minecoin store and I joined a world it will say error code word block I tried to troubleshoot it for about an hour and I finally figured out it was that Avatar item I could definitely repeat it and I have the pictures by the way I'm playing on Minecraft Mobile on Android and my name is Taylor