In-game keyboard dosen't work

When i want to write something on signs and in chat, i can't see what i'm writing. Also, i can't see the previous messages i sended or the others sended, and the space button dosen't work. Everytime i clik on space, nothing is happening, and when i send my message, all my words are stick together. So, i can't connect myself on servers, and i can't use commands on servers.