# Error fix of the 503 loop > Source: > Published: 2026-06-25 10:18:42+00:00 Hmm… If the symptom is really “stuck in `PAUSED` ”, **my personal impression is** that many of these cases do not get fixed until `website@huggingface.co` looks at them from the backend side. There are exceptions, of course, but I would treat this as a Space-state / lifecycle / possible moderation-lock issue first, not as a normal app crash. Details: Small note first: the Space URL in the post is still a placeholder, so nobody outside HF can inspect the actual repo/logs yet. But as a general decision tree, I would debug this by separating `503` from `PAUSED` . `503` alone is generic. `PAUSED` + restart failing + factory rebuild failing + commits not dispatching a new build is the more important pattern. | What you observe | Most likely bucket | First useful check | Next action | |---|---|---|---| | Build logs update and show an error | Build failure | Build log | Fix dependency/Docker/build error | | Container logs update and show a traceback | App/runtime crash | Container log | Fix app crash, missing env vars, model download, etc. | | App logs say it is running, but browser shows 503 | Port/healthcheck/routing issue | Port, host binding, `app_port` , healthcheck | Fix Space config / server binding | | Restart and Factory Rebuild fail, commits do not trigger build, logs do not update | Space lifecycle / builder dispatch / stuck state | Runtime API | Likely needs HF-side inspection | Runtime API says `Flagged as abusive` , `abuse-handler` , `RepoScanner` , `Cloudflare` , `tunnel` , `proxy` , etc. | Moderation / scanner / policy lock | Runtime API `raw` / `errorMessage` | Email HF with evidence and ask for review | | Many unrelated Spaces/users affected | Platform incident | HF status page | Wait / follow incident | So I would not conclude the root cause from `503` alone. But if the Space is really stuck in `PAUSED` and no build is being dispatched, I would stop pushing repeated commits and first inspect the runtime state. Hugging Face documents runtime-management APIs in `huggingface_hub` , including `get_space_runtime()` , `fetch_space_logs()` , and `restart_space()` : [https://huggingface.co/docs/huggingface_hub/en/package_reference/space_runtime](https://huggingface.co/docs/huggingface_hub/en/package_reference/space_runtime) Try this locally: ``` python from huggingface_hub import HfApi api = HfApi(token="hf_xxx") # useful if the Space is private runtime = api.get_space_runtime("OWNER/SPACE_NAME") print("stage:", runtime.stage) print("hardware:", runtime.hardware) print("requested_hardware:", runtime.requested_hardware) print("raw:", runtime.raw) ``` Or inspect the raw endpoint: ``` https://huggingface.co/api/spaces/OWNER/SPACE_NAME/runtime ``` With auth: ``` curl -H "Authorization: Bearer $HF_TOKEN" \ https://huggingface.co/api/spaces/OWNER/SPACE_NAME/runtime ``` Look for: ``` stage hardware requested_hardware raw errorMessage abuse / moderation-related fields, if present ``` Important words to notice: ``` Flagged as abusive abuse-handler RepoScanner Cloudflare tunnel proxy trojan proxy ``` If any of those appear, this is probably not a normal build failure. If the runtime output says something like: ``` Flagged as abusive abuse-handler RepoScanner Cloudflare tunnel proxy trojan proxy ``` then I would treat it as a HF-side review case. That does **not** prove that you intentionally did anything wrong. It only means the Space may be paused by an automated scanner or policy mechanism, and more commits may not unlock it. In that case, I would email `website@huggingface.co` with a compact, evidence-heavy report: ``` Subject: Space stuck in PAUSED / 503 loop - possible false positive or lifecycle lock Space URL: HF username: Request ID: Exact failed restart time, with timezone: Runtime API output: Build log status: Container log status: SDK type: Hardware: Last known working commit: Recent changes: What the Space does: Why it is not a proxy/tunnel/relay/scraper/spam/abuse service: Any suspicious files/dependencies already removed: ``` The key is to give HF enough backend correlation data: Space URL, Request ID, timestamp, and runtime output. If there is no moderation/scanner message, but: ``` Space remains PAUSED Restart returns 503 Factory Rebuild returns 503 New commits do not trigger a build Build logs do not update Container logs do not update ``` then I would still treat this as a Space lifecycle / builder dispatch / stuck backend state issue. Forum users usually cannot see the builder queue, lifecycle record, or backend restart error. This may still need HF-side inspection even if it is not an abuse/moderation case. If logs update, then debug it as a normal Space issue. Common checks: `127.0.0.1` instead of `0.0.0.0` `app_port` mismatch`EXPOSE` mismatchFor Docker Spaces, the normal docs to check are: [https://huggingface.co/docs/hub/spaces-sdks-docker-first-demo](https://huggingface.co/docs/hub/spaces-sdks-docker-first-demo) For Space metadata/configuration, including startup timeout: [https://huggingface.co/docs/hub/en/spaces-config-reference](https://huggingface.co/docs/hub/en/spaces-config-reference) Also check: [https://status.huggingface.co/](https://status.huggingface.co/) A green status page does not rule out a single-Space or account-specific issue, but if there is an active Spaces / Spaces Proxy incident, changing your repo may not help. Why I would not over-focus on the missing Space URLI would avoid: `503` automatically means an abuse flagA small duplicate/minimal Space test can be useful, but if the issue is account-side or lifecycle-side, many duplicates may just add noise. I would treat this as a decision tree: ``` php Does runtime API show abuse/scanner/policy wording? -> Email HF with Space URL, Request ID, runtime output, timestamps, and legitimate-use explanation. No abuse/scanner wording, but build never starts? -> Still likely needs HF-side inspection; report it as a lifecycle/builder/PAUSED-state issue. Build/container logs update? -> Debug as a normal app/build/container/healthcheck issue. Many Spaces affected? -> Check HF status before changing repo code. ``` So yes, if the Space is genuinely stuck in `PAUSED` , my first serious path would be `website@huggingface.co` with the runtime API output attached. The Space URL is still needed for a concrete answer, but the general diagnosis path above should help decide whether this is app-level debugging or an HF-side Space-state issue.