# 00) Overview

This page is simply an index of various troubleshooting tips that may be useful to you.

If you have any questions about Cosmos or this guide in particular, please visit the Cosmos Discord server.

{% embed url="<https://discord.gg/PwMWwsrwHA>" %}

If you are having issues with Pterodactyl and require assistance, please visit their official Discord server.

{% embed url="<https://discord.gg/pterodactyl>" %}

## Troubleshooting Index

[01) The Node shows up as offline in the Panel](https://guides.engels.zip/troubleshooting/00-overview/01-the-node-shows-up-as-offline)

[02) My Panel login page is blank / doens't load, after I create the reverse proxied URL](https://guides.engels.zip/troubleshooting/00-overview/02-my-panel-login-page-is-blank)

[03) "x509: certificate signed by unknown authority" error (RHEL/CentOS/Fedora)](https://guides.engels.zip/troubleshooting/00-overview/03-x509-certificate-signed-by-unknown-authority-error-rhel-centos-fedora)