So, according to the logs a zip library is throwing an exception. Assuming the repo index is provided in a zip file, did something change very recently in how F-Droid makes zip?
What I’m thinking about is that if something did, maybe that library on my device (is it installed systemwide and not provided by F-Droid apk?) is very old and can’t handle the new method.
Are there direct links to indexes of both F-Droid and Guardian Project? Just to compare them out of curiosity, I dunno how much I’ll actually be able to understand.