What does this mean and how can I fix it?
because that expression makes no sense, you’re saying “if not more than or equal?” you could simply do
if GetRankInGroud < 4 then
script:Destroy()
end
overall “Not” isn’t a thing when you’re checking if a number is more/equal/less than x.
The script thinks you’re doing if (not Rank) >= 4 then.