Yes i have the private key and i kept the old wallet from, I don't know three years or four, I am glad it is back. Is there a working explorer to check my address? Thank you for your time.
unfortunately you cannot check the address, as we have a only a blockcrawler, best and fastest way would be to download the new flappycoin binary (or compile it yourself) , do a backup of the existing wallet, and use your own wallet.dat file before syncing ( starting) flappycoin again.
your wallet - it will show up empty locally first, but as the blocks will be downloaded your coins will show up.
(your tx´s should show up as not confirmed with a complete new install, and will validate when the blockchain has reached the height needed)
first and important step is to backup the wallet.dat file. It is the first thing you do (copy to a usb stick or somewhere else safe).
if you havent started flappycoin for a long time (last year, january or similar)
- you might try to only start the new flappy binary, add nodes and it might will be just ok and will not take forever to sync.
!!anyway make sure you copy the old wallet.dat file before anything you do!!
edit:
you might altready find your old incoming tx `s also on blockcrawler (paste tx id to the coresponding searchfield there).