Hey. You're topic is not missing - it's been moved to Complete Nonsense, and you can easily find it by navigating to
your own posting history. The
help pages may be helpful in understanding how a web forum works, and how to use one.
Your post was moved because it was off-topic. Each board comes with a pinned thread titled "READ BEFORE POSTING [...]" - I encourage you to read them before posting in the boards, as they typically clarify the purpose of the board. This will also direct you towards the rules, which you agreed to follow when you registered an account.
In this particular case, you posted in FEI, so you could have/should have read
this thread.