Hi,
in first sorry for my bad English i'm French.
I bought Bitcoins and I put my BitcoinCore receiving address, but there is a problem Bitcore my client displays a download bar at the bottom that says "Catch up being the last block received was generated ago one year and 31 weeks, the transactions are not yet visible "suddenly I still have not received my BTC, what can I do to solve my problem?
Thx.
You are still syncing. You do not need to wait 1 year, that just means that the latest block it has is from 1 year and 31 weeks ago. That means that anything that came after that block (including the transaction that sent Bitcoin to your address) is not known and thus the balance is not there. All you have to do is wait for it to fully sync. It will take a few hours and up to a few days at most.