rw-core restart test not completing

$ make rwcore-restart-single-kind
source ./vst_venv/bin/activate ; set -u ;\
cd tests/functional ;\
robot -V /home/ubuntu/src/voltha-system-tests/tests/data/bbsim-kind.yaml -X -i functionalANDrwcore-restart Voltha_FailureScenarios.robot
==============================================================================
Voltha FailureScenarios :: Test various failure scenarios
==============================================================================

Sadis File:${CURDIR}/../../data/onos-sadis-bbsim.json
Sanity E2E Test for OLT/ONU on POD With Core Fail and Restart :: D... | FAIL |
Keyword 'Run Keyword And Continue On Failure' failed after retrying for 1 minute. The last error was: ONU port 16 not found in dhcpl2relay-allocations
------------------------------------------------------------------------------
Voltha FailureScenarios :: Test various failure scenarios | FAIL |
1 critical test, 0 passed, 1 failed
1 test total, 0 passed, 1 failed
==============================================================================
Output: /home/ubuntu/src/voltha-system-tests/tests/functional/output.xml
Log: /home/ubuntu/src/voltha-system-tests/tests/functional/log.html
Report: /home/ubuntu/src/voltha-system-tests/tests/functional/report.html
Makefile:128: recipe for target 'ready-voltha-test' failed
make: *** [ready-voltha-test] Error 1