When opening user tab getting undefined error


Hey Guys,

im running a fresh install of Rocket Chat in an Unraid Docker and seems to be fine but when i go into the users tab under administration i getting a red undefined error and nothing happens on this page.
Every Entry seems like a sort of loading with a gray bar but nothing shows up.

Is this a common issue and is there a solution?

Thanks in advance for your Help. :slight_smile:

Server Setup Information

  • Version of Rocket.Chat Server: 4.5.0
  • Operating System: Docker / Unraid
  • Deployment Method: <!-- docker
  • Number of Running Instances: 1
  • DB Replicaset Oplog:
  • NodeJS Version: v14.18.3
  • MongoDB Version: 5.0.6
  • Proxy: Sophos UTM
  • Firewalls involved: yes

Any additional Information


This error may be fixed on the 4.5.X patches.

Can you check if this errors persists in 4.5.3 (latest release as of now)?


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Hey thanks for your answer.

I updated the container to 4.5.3 but still the same error. :confused:

Any other ideas?

Hey im again,

i pinned it down to my firewall and Proxy settings.
Somehow my Firewall detects the access to the User tab as SQL attack and didnt deliver all the informations to the site.
This generates the Undefined Error.

Thanks for your help. :slight_smile:

Wow. That would take quite a time to figure it out.

Would you mind sharing what specific firewall blocked this? This can help other users on similar situation.

Thanks for sharing!

Im Using a Sophos UTM with Web Application Firewall as Proxy for certificate and HTTP to HTTPS translation. The Sopos uses a own set of Protection Rules for this Proxy.
Part of it is a SQL Injection prevention.

This SQL Injection Prevention caused the issue that the Users Tab in the administration panel didnt work.

1 Like

Thanks for sharing!!!