Fonts Problem (at least i think)

when i open the game , everything look fine , than when i start a flight , the place up in the screen where there should be written thing like menu , option , help and all the other ... they just wont appear ... i can click on them (invisible them) and i see sub menu opening but with nothing written in there ... i can click on one and the menu still open ... already tried to reinstall the game ... wont work 😞