after so many years.. i have decided to play again..but my other pokemons are missing. example Snorlax,charizard,pikachu,blastoise,venusaur.. also my bike
Are you sure you haven't traded them off before you quit playing in the past? A lot of players who do not believe they intend to return, sell off their possessions beforehand.
Your logs won't go back far enough. You did give away pokemon and money before you left. If you think this was done by someone other than you, you could post an Account Issue on the Playerdex and I will look into it.