Please Help!

so i downloaded infinity for ds3 and it all worked PERFECTLY i was able to use the menu and everything but then i accidently closed the infinity app and now it has given me a “shortcut cant be used” or something along those lines and all i could find after that was the infinity setup.exe so i tried running that again to see if i could get infinity back but all ive been getting is a installation error message. please help

Your nice antivirus software decided Infinity was a virus and removed it without notifying you.

Disable the antivirus, delete any remaining Infinity files and run the installer again.