OK, I have looked at your environment, updated your hosts file and license. Clearly, it looks like the environment has been messed up 
. Couple remarks:
- Your hosts file doesn't reflect your HANA server internal IP address. Use the internal IP address to connect from your Cloudshare HANA Studio, if you want to connect from your local machine, use the external IP address.
- The license somehow got expired and now it's updated.
- The hdbclient seems to be missing too. I have reinstalled it and reconfigure your Studio.
That's it. You should have a working system now.
Rocky