how can I setup and where can i found this cryptocoin daemon?
I don't know how can I do it:
Download your cryptocoin daemon, setup JSON RPC values in your config and add:
txindex = 1
Run your daemon with -reindex and -server arguments
it must be on serwer together with this scrpit??
any help ?

txindex = 1 is literaly a config found in your
bitcoin.conf (by default it's not added and you have to add it)
By default, Bitcoin Core builds a database containing only the transactions related to the users wallet. If you want to be able to access any transaction with commands like gettransaction, you need to configure Bitcoin Core to build a complete transaction index, which can be achieved with the txindex option. Set txindex=1 in the Bitcoin Core configuration file (usually found in your home directory under .bitcoin/bitcoin.conf). Once you change this parameter, you need to restart bitcoind and wait for it to rebuild the index.
When you add
txindex = 1, automatically the next time that you open Bitcoin Core (or the daemon client that you're using) it will ask for a reindex wich will take a lot of time but you will be able to use txindex.