Before updating to a major release, please read the release notes and breaking changes list : [CHANGELOG](https://github.com/JohnXLivingston/peertube-plugin-livechat/blob/main/CHANGELOG.md).
If you have just installed/upgraded the plugin, but nothing happens (no chat, no settings, buttons in the settings page does not work, ...), just try to reload the page.
![Screenshot of the plugin's settings page, with a "launch diagnostic" button.](/peertube-plugin-livechat/images/launch_diagnostic.png?classes=shadow,border&height=200px "Launch diagnostic")
If there is any error in the diagnostic page, you can search in this page for a solution, or refer to the [Bug tracking documentation page](/peertube-plugin-livechat/issues/) if you can't find any response.
![Screenshot of the diagnostic result page. This gives a lot of information, with status for different test suites.](/peertube-plugin-livechat/images/diagnostic.png?classes=shadow,border&height=200px "Diagnostic result")
In such case, try changing the "{{% livechat_label prosody_peertube_uri_label %}}" settings, by setting `http://127.0.0.1:9000` (assuming 9000 is the port on which Peertube listen, ask your instanceadministrators if you don't know).