Thank you for reporting!

You are unable to use building spawners, or the goddess flower ritual on a server, works in single player not on a server

• Please upload your crash reports or logs to https://gist.github.com or similiar sites, don't just paste it in raw!
• If the issue is not a crash, please provide your fml-client-latest.log or fml-server-latest.log
• Before reporting your issue, please make sure it have not already been reported.
• Make sure you have the latest version of Harvest Festival, since your issue might already have been fixed!
• Preferably provide us with what Forge version you are using.
• If the issue is between Harvest Festival and another mod, please inform what version of the mod you are using. Also make sure the other mod is updated to latest version.
• Please check out https://github.com/PenguinSquad/Harvest-Festival/blob/1.10.2/PLANS.md, before making any suggestions!