Fix: Incorrect handling of status page not found

[chakflying]

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Description

Fixes #4535

StatusPageData should always return something, so there is no need to check for its existence. sending HTTP Error response was however missing if the status page itself is not found.

Type of change

• Bug fix (non-breaking change which fixes an issue)

Checklist

• My code follows the style guidelines of this project
• I ran ESLint and other linters for modified files
• I have performed a self-review of my own code and tested it
• I have commented my code, particularly in hard-to-understand areas (including JSDoc for methods)
• My changes generates no new warnings
• My code needed automated testing. I have added them (this is optional task)

Screenshots (if any)

[Saibamen]

Should be backported to 1.23.X