Dify 502 bad gateway api/system-features error

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### Dify version

http://xxxx/console/api/system-features

### Cloud or Self Hosted

Self Hosted (Source)

### Steps to reproduce

http://xxxx/console/api/system-features
Dify 502 bad gateway api/system-features error

### ✔️ Expected Behavior

fix the issue

### ❌ Actual Behavior

502 Bad Gateway

Start by reproducing the self-hosted request at /console/api/system-features and inspect the relevant gateway and service logs for the source of the 502 response. The issue does not name a file or test, so identify the handler and failing dependency before making a change. Done means the endpoint returns its expected response instead of 502.

Written by the indexing model from the issue text.