[Konstantinos]

Use OnPlayerStateChange instead. Store the player's ID only, not the vehicle's ID. And when they turn the spectate off, don't forget to set Spectate[id_here] to INVALID_PLAYER_ID.

pawn Код:

public OnPlayerStateChange( playerid, newstate, oldstate )
{
    if( newstate == PLAYER_STATE_ONFOOT )
    {
        for( new i = 0; i < MAX_PLAYERS; i++ )
        {
            if( !IsPlayerConnected( i ) ) continue;
            if( Spectate[ i ] == playerid ) PlayerSpectatePlayer( i, playerid );
        }
    }
    return 1;
}