I keep getting this runtime error but I don't know what to do or how to fix it, it is the most helpfull thing ever. Thats like having a program and just tell you this, "Error you must find it!! he he he". Anyway this is the runtime error:

runtime error: list index out of bounds
proc name: generate (/mob/proc/generate)
usr: InuTracy (/mob)
src: InuTracy (/mob)
call stack:
InuTracy (/mob): generate()
InuTracy (/mob): StatGenerator()

Im making a stat generator for my game and I don't know how to fix this!