Since only a few of you seem to know how the program works I will post this, each patch lol cracker will become outdated and will need editing to function correctly again. This will not work every time and sometimes you must wait for the owner to update it, simply try this first.
Step 1: Load up league of legends to the login screen and copy the version
Step 2: Copy and then paste it into the settings.json
Save and then open lolcracker.