guys help me please, I lost the semux wallet from the computer, each time the program invites me to make a new wallet ,but my old wallet is lost, how do I fix it, so that the wallet does not disappear every time? thank you very much in advance 
if it's asking you a new password whenever you ran your wallet,that means your wallet is lost.
you can recover it as long as you have your old wallet.dat,but if you do not have it you can not recover it.that was why it's recommended to back it up before running the wallet.
also the problem might be because of your anti-virus,some of them are not compatible with cryptocurrency such as Avast for example.
it will delete your wallet.dat,when you are running it.
so if you are using it,disable it first and run the wallet afterward.