Hi,
Thanks for reaching out to us! I’d be happy to help you 🙂
Regarding recurring events, you actually need Events Calendar PRO to use this feature, and I don’t this a PRO license associated with your account. Maybe you have used another email address to get a PRO license?
To answer your first question, it mostly depends on how you have set them up. I would strongly recommend you to read carefully (if you haven’t done it yet) our documentation about recurring events.
To uninstall/reinstall our plugin, if it states that the folder already exists, then you should do a manual installation via your FTP account. Once again, please read carefully our documentation about it.
I hope this helps,
Cheers,
Jeremy