contests and designs not found

dear DC
permission to ask ..
whether the loss of a contest has something to do with the status or rules of a guaranteed contest or not guaranteed contest, because I found there are several contests whose status I cannot find and just disappear, without any notification.
actually this is not a problem, but I feel that I don't understand because the design that I entered is also missing on my design page .... does it only happen to me?

 Please read

https://www.designco...doned-contests/

Thank you

thank you