Getting ProxyRequestError: Could not proxy command to remote server. Original error: Error: socket hang up (after installing and launching app (WDA is also installed))

Issues/Bugs
1

Env Info:
Platform: IOS 11.2
Appium: 1.7.1
Xcode: 9.3

Getting error as below when running test case,
[MJSONWP] Encountered internal error running command: ProxyRequestError: Could not proxy command to remote server. Original error: Error: socket hang up

Please find logs attached appium server logs which shows error appium-server-logs.txt (63.1 KB)