Mining new litecoin based altcoin. Internal Server Error 500
The problem is that the Litecoin I used 0.8.4.7, does not have embedded mining software.

I ended up with two solutions:


Create mining pool and then:


connect nodes to each other
run the miner on my mining pool

Compile and run (-gen=1 option) old Litecoin node then connect to th
e other nodes one.