Raise error instead of warning "unknown review status ClinVar"

[SietsmaRJ]

Is your feature request related to a problem? Please describe.
Not yet, but as soon as ClinVar introduces a new a new star in their review status this problem becomes priority.

Describe the solution you'd like
Instead of raising a warning, raising an error would be preffered.

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Additional context
Add any other context or screenshots about the feature request here.