1x InFlight_Load/InFlight_Load.lua:42: attempt to call global 'GetAddOnEnableState' (a nil value)
[string "@InFlight_Load/InFlight_Load.lua"]:42: in main chunk

Locals:
InFlight = InFlight {
}
self = InFlight {
}
(*temporary) = nil
(*temporary) = "Kharthus"
(*temporary) = "InFlight"
(*temporary) = "attempt to call global 'GetAddOnEnableState' (a nil value)"

I've submitted a pull request with fixes for this issue.

@superwario15 nice work but pls check line 48 ->2x if is not good :)