Krnl won't execute script

It worked perfectly fine 2 days ago, but now it just won't execute any script. No signs of errors too. I tried the same script that worked the other day, followed what I did the other day when it worked and also tried other scripts but it just won't execute. I made sure my windows security is turned off, reinstalled, updated and whatever. I could inject and all that but I just can't execute the script. Specifically on blox fruit...

Any idea why? send help pls...