Need help to start witness ubuntu server- Face some problems

i follow mostly @jerrybanfield & today decide to start a witness server to contribute steemit family

My Witness and Seed Server Specifications!

8 GB DDR4 RAM
2x Intel Xeon E5-2630 V3
1x 240GB SSDs
1Gbit/s connection

follow all the steps which are mentioned on the given link

https://steemkr.com/witness/@jerrybanfield/get-a-steem-witness-seed-online-today-with-these-ubuntu-linux-commands

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steps which i follow

Access the Server!

connected. Enter your username and IP address to get started.

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Face an error
./run.sh logs
when i run this command then an error message shown . Please guide on which step i do the mistake & what are the factors which i perform to clear this error