Client connection from localhost

WHY I’M getting error in second test case . it shows
Failure: Local Client hasn’t successfully connected to Server

Why this is happening?
Although i compeleted connection from device to ftp and desktop to ftp

unittest log

2020-02-16 06:36:31,946 unitTesting INFO Running command_runner
2020-02-16 06:36:32,069 unitTesting INFO Running setup.sh…
2020-02-16 06:36:33,035 unitTesting INFO Module setup complete!
2020-02-16 06:36:33,041 unitTesting INFO Starting assessment…
2020-02-16 06:36:33,043 unitTesting INFO Assessing confirm_server_listening.py
2020-02-16 06:36:33,313 unitTesting INFO File: confirm_server_listening.py | Status: TEST_STATUS_SUCCESS
2020-02-16 06:36:33,317 unitTesting INFO Assessing confirm_client_server_communication.py
2020-02-16 06:36:33,549 unitTesting INFO Failure: Local Client hasn’t successfully connected to Server

2020-02-16 06:36:33,554 unitTesting INFO File: confirm_client_server_communication.py | Status: TEST_STATUS_FAILURE
2020-02-16 06:36:33,557 unitTesting INFO Assessing confirm_external_client_server_communication.py
2020-02-16 06:36:33,944 unitTesting INFO File: confirm_external_client_server_communication.py | Status: TEST_STATUS_SUCCESS
2020-02-16 06:36:33,949 unitTesting INFO Assessment finished!
2020-02-16 06:36:33,951 unitTesting INFO Starting cleanup…
2020-02-16 06:36:33,988 unitTesting INFO Running cleanup.sh…

@chandra-kiran_crio @Rohin_Crio-Tech please help

refer this : Test case are not passing

hey look into this you will find out