BUG: Application error is displayed when user navigates to chat page

[Olena-Olenka]

Describe your issue

Application error is displayed when user navigates to chat page

Steps to reproduce

1. As a registered user navigate to chat page
2. Pay attention to error displayed

What was the actual result?

Application error is displayed when user navigates to chat page

What was the expected result?

Content of the chat page is displayed

Put here any screenshots or videos (optional)

What OS are you seeing the problem on?

Windows

What browsers are you seeing the problem on?

Chrome

Severity

Blocker (S1)

[Olena-Olenka]

Retested, verified