How to fix "there was an issue connecting to Qwen2.5-Plus. Ln is null" error?

While chatting I sometimes see this error instead of the expected answer:

Uh-oh! There was an issue connecting to Qwen2.5-Plus.
Ln is null

       Uh-oh! There was an issue connecting to Qwen2.5-Plus. Ln is null

 

How to fix it?

Answers

Had the same issue.

Just make the same request again (send the same message again to chat bot).

It seems to be an internal Qwen's error and there is nothing we can do here at all, except if it is happening too often, try to make a pause for a few minutes and give it a time to cool down.

The reason may be that the equipment can't handle the increased workload.