Run failed: Model deepseek-chat not exist.

[wsv8088]

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I have configured the DeepSeek model correctly, but whenever I run the LLM node, it prompts that the model does not exist. I am using version dify-1.9.2. I have tried removing plugins and reinstalling, but nothing works. Please help provide a solution—I’m in a hurry.

[wsv8088]

When creating applications such as chat assistants, I was also unable to complete the creation. I captured a backend log, which includes an error message as follows:
api-1 | 2026-01-14 13:16:22.995 INFO [Dummy-9] [_client.py:1038] - HTTP Request: POST http://plugin_daemon:5002/plugin/2cf3c954-e0ec-4d02-bc19-17e5ab231f8a/dispatch/model/schema "HTTP/1.1 500 Internal Server Error"