[Bug] Create topic error in Standalone mode

[jevinjiang]

Search before asking

• I had searched in the issues and found no similar issues.

Environment

Other

EventMesh version

master

What happened

Started with source code, Standalone mode, when initiating HTTP subscription, an exception on line 76 is thrown.

How to reproduce

Create topic in Standalone mode

Debug logs

No response

Are you willing to submit PR?

• Yes I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct *

[github-actions]

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