Auroracoin is running live and well (I'm a member of its dev team). It also passed beyond its litecoin base.
Why do you want to alter things in the coin specs? Why auroracoin? There are dozens of dead and abandoned coins that you could use for your experiment.
I'm not your enemy.
I plan to create their own coins. I'm looking for a reliable COINS without error, something to the new currency of success, can you help?
Sorry, I don't have time for helping you with that. I can give you a few tips:
1) Use a dead and abandoned coin, so you don't get strange results by connecting to a live coin. You'll get errors about invalid blocks if you try to do so.
2) Use the documentation on internet, you should be able to create a coin without too much problems. The most tricky part is the generation of a genesis block, but doable.
3) Most coin settings are in a single file these days, see src/chainparams.cpp.
4) First try to successfully generate a genesis block. A pre-mine can be implemented later again (wipe the blockchain, but reuse the genesis block).
5) For mining you need at least two wallets connected to each other.