unexpected status 503 Service Unavailable: CC Switch local proxy failed while ha...

unexpected status 503 Service Unavailable: CC Switch local proxy failed while handling Codex endpoint /responses. Provider: DMXAPI; model: qwen3.5-plus-free; upstream_status: HTTP 503; cause: 所有令牌分组 default 下对于模型 qwen3.5-plus-free 均无可用渠道，请更换分组尝试 (request id: 20260617104441385605725CVmhSuDe), url: http://127.0.0.1:15721/v1/responses