Y cant i use my sv anymore??

Hi guyz!
I turned on CO, i tried yo Sv 5 times, but it didnt work. a pop up comes up and it says that i have to re-instal my sv and that shit bla bla bla...

Thanks for reading, some please answer.

if you patched it wont work anymore.
and yes i my self am also trying out stuf

how can i make it work??