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.
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.
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 instance administrators if you don't know).
If everything is fine in the diagnostic tools, but chat windows remains empty: it can be a Websocket issue.Since Peertube version 5.0.0, there are some additional configuration to do on the server side.Check with the instance administrators that they did not forgot to apply changes listed in the [Peertube v5.0.0 release notes](https://github.com/Chocobozzz/PeerTube/blob/master/CHANGELOG.md#v500).
