I'm having trouble reproducing what you're reporting.
In general, the way to "Reset your cache if you are using a new prompt template."? is to set another cache folder in your new config file. Or to delete the existing cache folder (if you're not going to use it). Either way, you do should use a separate cache per spacy-llm config.
FileNotFoundError: [Errno 2] No such file or directory: 'local-ner-cache/9963044417883968883.spacy'
was thrown when you deleted the local-ner-cache and restarted the recipe with the same command and the same config?
It appears that the FileNotFound error occurs specifically after I delete the cache directory. Subsequently, I've opted to refrain from deleting the entire cache directory and instead only delete the prompt file to mitigate the risk.
Unfortunately, I don't have the full traceback at the moment. In future instances of encountering the error, I plan to share the traceback for a more detailed analysis.