I found a bug where the File & Label statistics section would always say:
* Invalid value for "wordcounter_last_version". Please make sure it says either "save" or "load".
whereas wordcounter_last_version is “save” indeed.
I fixed it in wordcounter+.rpy by replacing
if wordcounter_last_version == "load" or isinstance(wordcounter_last_version, list) and len(wordcounter_last_version) == 2:
with
elif wordcounter_last_version == "load" or isinstance(wordcounter_last_version, list) and len(wordcounter_last_version) == 2:
(elif is needed to chain with the “save” check or the final else that prints the error doesn’t make sense)
You should probably fix this in the non-premium script as well.