Missing file,

[SlendytubbiesFan1221]

everytime i try pressing start it says something like "Missing file, if press quit, it will go away, If press start, it will try to load" and everytime i press start it doesnt work. what do i do???

try launching the game straight from the folder (the GC folder in your C: drive)

i am not really informed on this stuff so i'll ask for an explaination but just wanted to mention, i did a scan and it said the launcher was a virus?? was that a false detection or no? and can you explain to me what to do?? with the c drive and stuff? thanks.