Kubevirt VM OBS build issue

Hi Team,
We have created kubevirt VM & connected as a OBS worker., When we triggered the build in OBS build system., OBS worker (kubevirt VM) not visible in monitor page once the build starts and we are getting the below errors in kubevirt VM worker

Oct 31 10:21:23 testvm sshd[2365]: error: kex_exchange_identification: client sent invalid protocol identifier "PUT /build?port=5252&workercode=xxxxxxxxxxxxxx&buildcode=xxxxxxxxxxxxx>
Oct 31 10:21:23 testvm sshd[2365]: banner exchange: Connection from port 35554: invalid format

Kindly help us to resolve the above error