OCF Certification Test Tool(CTT) Error

An unknown error occurred while testing the simpleclient in the iotivity source with OCF CTT.

error when executing CTT with simple client (cpp)

1)

ERROR Device is owned but expected to be unowned

16:33:16 ERROR Onboarding failed. OCTT could not open secure connection

16:33:16 ERROR Test case result: FAILED

2)

17:57:07 ERROR OCTT did not re-discover IUT. Check if IUT is in the network and responds to / oic / res on multicast.

17:57:07 ERROR Test case result: FAILED

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And I also run the clientcontroller of the simulator, but I get a message related to Coap. (based on JAVA)

18:07:32 INFO Sending unicast CONDATE request with query: / oic / sec / doxm 18:07:32 INFO Prompting "Waiting for CoAP response ...

Please tell us the cause of all the above errors. Thank you.