Left4Dead2 Visuals Multihack

my game keeps crashing when injecting the cheat

if it happens right after clicking on exe injector then you didnt follow the red text near download button

No I followed the rules and downloaded and extracted dependencies and deleted that file in bin folder
The program appears with CS Junkies logo and Please Wait and after few seconds assuming while injecting game closes without any error message 
When checking in task manager there is no left over of l4d2.exe 
also could it be because i use -vulcan command to play the game? without it wont even work

also when I try to run exe of l4d2 exe i get this error message