Device got disconnected

[DhivyaS19]

I am getting this message "Device got disconnected"
after connecting device in the server. I am able debug the device but it stops working after this message in the local host server and am getting the below Xcode logs:

Restarting after unexpected exit or crash in UITestingUITests/testSocketRunner; summary will include totals from previous launches.

Test Suite 'Selected tests' started at 2019-05-07 15:57:41.786
Test Suite 'WebDriverAgentRunner.xctest' started at 2019-05-07 15:57:41.786
Test Suite 'WebDriverAgentRunner.xctest' failed at 2019-05-07 15:57:41.787.
Executed 1 test, with 1 failure (0 unexpected) in 0.000 (0.000) seconds
Test Suite 'WebDriverAgentLib.framework' started at 2019-05-07 15:57:41.787
Test Suite 'WebDriverAgentLib.framework' passed at 2019-05-07 15:57:41.787.
Executed 0 tests, with 0 failures (0 unexpected) in 0.000 (0.000) seconds
Test Suite 'Selected tests' failed at 2019-05-07 15:57:41.788.
Executed 1 test, with 1 failure (0 unexpected) in 0.000 (0.002) seconds
Executed 1 test, with 1 failure (0 unexpected) in 0.000 (0.002) seconds