Hi, how can we help?

We’re continuously working to make Gumb better.

Here you'll find an up-to-date overview of known issues, their causes, and - where possible - a quick fix or temporary workaround.

📱 Android & iOS

❗ Issue: Joining a Community via Link Not Working

• Status: In progress 🛠️
• Affected platforms: Android & iOS
• Error message: invalid input syntax for type uuid: ""

Description:
When tapping a community link on a mobile device (Android or iOS), the above error appears.

Joining via the web version of Gumb (gumb.app) works correctly.

The issue is caused by the mobile app not sending a valid community ID (UUID) to the server when opening the join link.
As a result, Gumb can’t identify which community the user is trying to join.

🧭 Recommended Workaround

Join via Web (recommended):

• Open gumb.app in your browser (not the mobile app) and log in.
• Click the community link again - joining should work as expected.

Or: Admin adds the member manually:

• Open the Members section → Add user in the web version.
• The new member can quickly create an account (see Create your account 💁🏻) and send their registered email address.
• Enter this email under Add user - the person will appear instantly in your members list and gain access to all events.
• Alternatively, the admin can pre-register the member:
  → Enter email, first and last name → save.
  → The member will automatically receive an invitation with login details (email + password).

💡 Note: For smaller communities (under 100 members), the “pre-register via email” option is usually the fastest and most reliable.

Fix planned: Included in the next app update (expected mid-November).

🌐 Web Version

✅ No known bugs at this time.

💡 Note

This page is updated regularly.

If you encounter another issue, please contact us directly via the contact form or email support@gumb.app.