Description

Fixes an issue where the CPU Frequency cannot be fetched from the system, causing the plugin to crash miserably.

Fixes #56

Type of change

[x] Bug fix (non-breaking change which fixes an issue)
[ ] New feature (non-breaking change which adds functionality)
[ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
[x] This change requires a documentation update

[x] My code follows the style guidelines of this project
[x] I have performed a self-review of my own code
[x] I have commented my code, particularly in hard-to-understand areas
[x] I have made corresponding changes to the documentation
[x] My changes generate no new warnings
[x] I have added tests that prove my fix is effective or that my feature works
[x] New and existing unit tests pass locally with my changes (not just the CI)
[x] Any dependent changes have been merged and published in downstream modules
[x] I have provided a link to the issue this PR adresses in the Description section above
[x ] I have updated the changelog
[x] I have labeled my PR using appropriate tags