Assessment failure

All test cases were failed i don’t a proper reason for this i have done and saved each milestone file please help…!
My unit testing log file

2020-02-19 18:46:35,648 unitTesting INFO Running command_runner
2020-02-19 18:46:35,771 unitTesting INFO Running setup.sh…
2020-02-19 18:46:37,849 unitTesting INFO Module setup complete!
2020-02-19 18:46:37,855 unitTesting INFO Starting assessment…
2020-02-19 18:46:37,858 unitTesting INFO Assessing pcap_check_icmp.py
2020-02-19 18:46:38,703 unitTesting ERROR python3 /akhilrao199867-ME_QBOX-242b8dc8-5348-11ea-b84d-8526448abe2e/ME_QBOX_MODULE_ANALYZING_PROTOCOL_SOLUTION/analyzing_protocol/pcap_check_icmp.py /akhilrao199867-ME_QBOX-242b8dc8-5348-11ea-b84d-8526448abe2e/akhilrao199867-ME_QBOX/analyzing_protocol/ping_capture.pcap /akhilrao199867-ME_QBOX-242b8dc8-5348-11ea-b84d-8526448abe2e/akhilrao199867-ME_QBOX/analyzing_protocol/internal_ip_address_of_server returncode > 0! Check your code.
2020-02-19 18:46:38,709 unitTesting INFO File: pcap_check_icmp.py | Status: TEST_STATUS_FAILURE
2020-02-19 18:46:38,711 unitTesting INFO Assessing pcap_check_name_resolution.py
2020-02-19 18:46:39,423 unitTesting ERROR python3 /akhilrao199867-ME_QBOX-242b8dc8-5348-11ea-b84d-8526448abe2e/ME_QBOX_MODULE_ANALYZING_PROTOCOL_SOLUTION/analyzing_protocol/pcap_check_name_resolution.py /akhilrao199867-ME_QBOX-242b8dc8-5348-11ea-b84d-8526448abe2e/akhilrao199867-ME_QBOX/analyzing_protocol/ping_traceroute.pcap /akhilrao199867-ME_QBOX-242b8dc8-5348-11ea-b84d-8526448abe2e/akhilrao199867-ME_QBOX/analyzing_protocol/packet_numbers_for_domain_name_resolution returncode > 0! Check your code.
2020-02-19 18:46:39,437 unitTesting INFO File: pcap_check_name_resolution.py | Status: TEST_STATUS_FAILURE
2020-02-19 18:46:39,439 unitTesting INFO Assessing pcap_check_tcp_handshake.py
2020-02-19 18:46:40,123 unitTesting ERROR python3 /akhilrao199867-ME_QBOX-242b8dc8-5348-11ea-b84d-8526448abe2e/ME_QBOX_MODULE_ANALYZING_PROTOCOL_SOLUTION/analyzing_protocol/pcap_check_tcp_handshake.py /akhilrao199867-ME_QBOX-242b8dc8-5348-11ea-b84d-8526448abe2e/akhilrao199867-ME_QBOX/analyzing_protocol/client_connection_file_transfer.pcap /akhilrao199867-ME_QBOX-242b8dc8-5348-11ea-b84d-8526448abe2e/akhilrao199867-ME_QBOX/analyzing_protocol/packet_numbers_for_tcp_connection_setup returncode > 0! Check your code.
2020-02-19 18:46:40,133 unitTesting INFO File: pcap_check_tcp_handshake.py | Status: TEST_STATUS_FAILURE
2020-02-19 18:46:40,136 unitTesting INFO Assessing pcap_check_zero_window.py
2020-02-19 18:46:40,316 unitTesting ERROR python3 /akhilrao199867-ME_QBOX-242b8dc8-5348-11ea-b84d-8526448abe2e/ME_QBOX_MODULE_ANALYZING_PROTOCOL_SOLUTION/analyzing_protocol/pcap_check_zero_window.py /akhilrao199867-ME_QBOX-242b8dc8-5348-11ea-b84d-8526448abe2e/akhilrao199867-ME_QBOX/analyzing_protocol/zero_window_details returncode > 0! Check your code.
2020-02-19 18:46:40,334 unitTesting INFO File: pcap_check_zero_window.py | Status: TEST_STATUS_FAILURE
2020-02-19 18:46:40,337 unitTesting INFO Assessing pcap_check_connection_termination.py
2020-02-19 18:46:40,505 unitTesting ERROR python3 /akhilrao199867-ME_QBOX-242b8dc8-5348-11ea-b84d-8526448abe2e/ME_QBOX_MODULE_ANALYZING_PROTOCOL_SOLUTION/analyzing_protocol/pcap_check_connection_termination.py /akhilrao199867-ME_QBOX-242b8dc8-5348-11ea-b84d-8526448abe2e/akhilrao199867-ME_QBOX/analyzing_protocol/abnormal_connection_termination_details returncode > 0! Check your code.
2020-02-19 18:46:40,509 unitTesting INFO File: pcap_check_connection_termination.py | Status: TEST_STATUS_FAILURE
2020-02-19 18:46:40,511 unitTesting INFO Assessment finished!
2020-02-19 18:46:40,512 unitTesting INFO Starting cleanup…
2020-02-19 18:46:40,555 unitTesting INFO Running cleanup.sh…

Your submissions have the .txt extension, please remove the extension and submit the files.