creative cloud apps won't work

I'm having trouble with the creative cloud apps 

all of them seem to not work and the creative cloud desktop app also doesn't work and all I get is a blank screen like nothing is happening, I don't know what to do I've been trying to restart my mac and it won't help. but the thing is when I go to an old photoshop or any app file and open it it will open but it won't let me open a new project 

this is so weird and I need to do homework (design student) so I really need help 

thanks,Nataly