SOS,Who can help me!

I consider it's serious and terrible very much,that is OMSI Ths Bus Simulator may be wrong or corrupted somehow in recently,and I can't confirm why it is so!!!I'm deeply anxious and worry about that I may play it well,as well have fun on it!!!because its' my most favourite one of The Bus Simualtor (Cyber-)games since I'm born on the world!!!Speak in detail,that when I chose my driving bus,I want to press F1 button or key to enter driver view of this bus,but there's no any response/respond,the same as the other buttons or keys,it looks like there've no any responses or responds,So I can't play it or drive the buses in OMSI,and it lasts for several days,almost two months,meanwhile,I tried to uninstall and reinstall the program for several times,but it can't solve any problems,situation as the same!!!I may not change any OMSI game function-keys setting and re-setting and others,So I wonder to how to solve the problems,Who can help me!!!It can't solve any problems that I tried to uninstall or reinstall the program for several times now,SOS,Who can help me,I'll be greatly appreciated for this or I'll greatly appreciate him for this,Don't you think so,ahh!!!see you later,good-bye

Note：I can still play the OMSI game before,But suddenly,someday I can't play it or drive the buses on it somehow,I don't know why it is now!!!please help me solve this problem,I'll be greatly appreciated for this,Don't you think so,ahh!!!see you later,good-bye

Deleted the thread below (which was exactly the same, I guess it was not your intention).

Is every button not responding on your keyboard or only the F function keys (F1, F2, etc.)? In the first case try to use another keyboard, in the second case you may have to press the F lock button on your keyboard.

That's it,is the second case like as what you said,all "F" buttons are not in service,including F1,F2 ,F3 and the others!!!But could you tell me how to unlock the "F" locked buttons,Which buttons or keys should be pressed by OMSI fan?Whatever,I'm sure that my computer (PC) any keyboard buttons or keys are in service well,I have tested them for several times,So I hope you may help me solve the problem,I 'm greatly appreciated for this to you,Good luck!!!Don't you think so,ahh!!!see you later,good-bye

Well, I think every keyboard has a different F lock button. On my own keyboard the F lock button is placed at the left upper corner and it has a "F" written on it, if I press it there is also a light visible.

This is a example of a F lock button:



If you still can`t find it I would suggest to look in the manual of your keyboard. If you don`t have the manual try to look for it on the internet. Good luck.