[BUG] We can't invite people to projects

[lcfd]

Hello 👋

While using Taiga we are having a problem with events. Specifically, the WebSocket that handles the events is unable to establish a connection. We noticed this when we tried to invite a new member to a project.
You can press the button and nothing happened. This makes the application unusable for collaboration.
Strangely, the rest of the application seems to work fine.

Here are some errors that are seen on the server-side:

taiga-gateway  | [error] 32#32: *65 connect() failed (111: Connection refused) while connecting to upstream, client: 192.168.176.8, server: , request: "GET /events HTTP/1.1", upstream: "http://192.168.176.9:8888/events", host: "xxxx.xxxxxx.xxx"

taiga-async |: ERROR/MainProcess] consumer: Cannot connect to amqp://taiga:**@taiga-async-rabbitmq:5672/taiga: [Errno 111] Connection refused.

taiga-events  | {"message":"Unhandled Rejection: \"Error: connect ECONNREFUSED 192.168.176.5:5672\"","level":"warn","service":"taiga-events","timestamp":"xxx"}

Describe the bug
I can't invite members to a project.

How can we reproduce the behavior

• Go to project settings
• Go to MEMBERS
• Try to add a new member using the + NEW MEMBER button
• Insert the email
• Press the button on the same line
• Choose a role
• Press on the INVITE button

The spinner starts rotating but nothing else.

Workarounds
No workarounds were found.

Screenshots

Taiga environment
self-hosted Taiga?

Desktop (please complete the following information):

• OS: Ubuntu 22.04 LTS
• Browser: Chrome
• Version: Version 100.0.4896.127 (Official Build) (arm64)

Additional context