'Rancher - Failed to create pod sandbox: rpc error: code = Unknown desc

Does any one know how to resolve this error message? The same Rancher container's were working just fine until about 2 weeks.

Failed to create pod sandbox: rpc error: code = Unknown desc = [failed to set up sandbox container "e85e08bf70bfbb8cafe4b61b79f47008b4e829310600e5defb29f0a6600d25e3" network for pod "ykgwagg-845b559fbf-clrp8": networkPlugin cni failed to set up pod "ykgwagg-845b559fbf-clrp8_agg" network: error getting ClusterInformation: connection is unauthorized: Unauthorized, failed to clean up sandbox container "e85e08bf70bfbb8cafe4b61b79f47008b4e829310600e5defb29f0a6600d25e3" network for pod "ykgwagg-845b559fbf-clrp8": networkPlugin cni failed to teardown pod "ykgwagg-845b559fbf-clrp8_agg" network: error getting ClusterInformation: connection is unauthorized: Unauthorized]

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