Error when sending finalized form in ODK Collect

Hello,

Welcome to the ODK forum, @Janita! We're glad you're here. When you get a chance, please Introduce yourself here!. I'd also encourage you to add a real picture as your avatar because it helps build community!

Regarding your submission issue, where are you hosting your Aggregate server and what version are you using? Could you access the complete error message, if so please reply with the error message.

Thanks,
Imran