ChikinRayRay

Everytime i try joining a multiplayer server in Attack of the B-Team, it says the following: The following microblocks are not installed on this client: tile.blockDiamond, tile.blockEmerald, tile.blockGold, tile.blockIron, tile.blockLapis, tile.bookshelf, tile.dirt, tile.lightgem, tile.sandstone, tile.sandstone_1, tile.sandstone_2, tile.stonebrick, tile.stonebricksmooth, tile.stonebricksmooth_1, tile.stonebricksmooth_2, tile.stonebricksmooth_3. Can someone plz help and tell me how to solve this problem?