Texture Glitch

Cobblestone, dirt and cactus are textures that aren't loading since I started the game a few hours ago (has been fine the days before). All item names are glitched, Iron Sword = item.iron_sword.name. Further more, pause menus consist of items like menu.returnToGame and the initial main also consists of things like menu.play. All client side, I have PC player friends on the same world.