My game script has an error, I tried checking it but it doesn't work at all, any help?

I have a code, and i tried making a minigame game, and the game script does not work. Here is the line where it says that there is an error.

for i = 1, #AllPlayers do

and this is the error message.

  error:(132,3) Syntax error: expected 'then' when parsing if statement, got 'for'

any help?

Before anybody answers, I figured it out, the line before needed a "then".